(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.adapter=f()}})(function(){var define,module,exports;return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}({1:[function(require,module,exports){"use strict";var SDPUtils=require("sdp");function writeMediaSection(transceiver,caps,type,stream,dtlsRole){var sdp=SDPUtils.writeRtpDescription(transceiver.kind,caps);sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters());sdp+=SDPUtils.writeDtlsParameters(transceiver.dtlsTransport.getLocalParameters(),type==="offer"?"actpass":dtlsRole||"active");sdp+="a=mid:"+transceiver.mid+"\r\n";if(transceiver.rtpSender&&transceiver.rtpReceiver){sdp+="a=sendrecv\r\n"}else if(transceiver.rtpSender){sdp+="a=sendonly\r\n"}else if(transceiver.rtpReceiver){sdp+="a=recvonly\r\n"}else{sdp+="a=inactive\r\n"}if(transceiver.rtpSender){var trackId=transceiver.rtpSender._initialTrackId||transceiver.rtpSender.track.id;transceiver.rtpSender._initialTrackId=trackId;var msid="msid:"+(stream?stream.id:"-")+" "+trackId+"\r\n";sdp+="a="+msid;sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].ssrc+" "+msid;if(transceiver.sendEncodingParameters[0].rtx){sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].rtx.ssrc+" "+msid;sdp+="a=ssrc-group:FID "+transceiver.sendEncodingParameters[0].ssrc+" "+transceiver.sendEncodingParameters[0].rtx.ssrc+"\r\n"}}sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].ssrc+" cname:"+SDPUtils.localCName+"\r\n";if(transceiver.rtpSender&&transceiver.sendEncodingParameters[0].rtx){sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].rtx.ssrc+" cname:"+SDPUtils.localCName+"\r\n"}return sdp}function filterIceServers(iceServers,edgeVersion){var hasTurn=false;iceServers=JSON.parse(JSON.stringify(iceServers));return iceServers.filter(function(server){if(server&&(server.urls||server.url)){var urls=server.urls||server.url;if(server.url&&!server.urls){console.warn("RTCIceServer.url is deprecated! Use urls instead.")}var isString=typeof urls==="string";if(isString){urls=[urls]}urls=urls.filter(function(url){var validTurn=url.indexOf("turn:")===0&&url.indexOf("transport=udp")!==-1&&url.indexOf("turn:[")===-1&&!hasTurn;if(validTurn){hasTurn=true;return true}return url.indexOf("stun:")===0&&edgeVersion>=14393&&url.indexOf("?transport=udp")===-1});delete server.url;server.urls=isString?urls[0]:urls;return!!urls.length}})}function getCommonCapabilities(localCapabilities,remoteCapabilities){var commonCapabilities={codecs:[],headerExtensions:[],fecMechanisms:[]};var findCodecByPayloadType=function(pt,codecs){pt=parseInt(pt,10);for(var i=0;i<codecs.length;i++){if(codecs[i].payloadType===pt||codecs[i].preferredPayloadType===pt){return codecs[i]}}};var rtxCapabilityMatches=function(lRtx,rRtx,lCodecs,rCodecs){var lCodec=findCodecByPayloadType(lRtx.parameters.apt,lCodecs);var rCodec=findCodecByPayloadType(rRtx.parameters.apt,rCodecs);return lCodec&&rCodec&&lCodec.name.toLowerCase()===rCodec.name.toLowerCase()};localCapabilities.codecs.forEach(function(lCodec){for(var i=0;i<remoteCapabilities.codecs.length;i++){var rCodec=remoteCapabilities.codecs[i];if(lCodec.name.toLowerCase()===rCodec.name.toLowerCase()&&lCodec.clockRate===rCodec.clockRate){if(lCodec.name.toLowerCase()==="rtx"&&lCodec.parameters&&rCodec.parameters.apt){if(!rtxCapabilityMatches(lCodec,rCodec,localCapabilities.codecs,remoteCapabilities.codecs)){continue}}rCodec=JSON.parse(JSON.stringify(rCodec));rCodec.numChannels=Math.min(lCodec.numChannels,rCodec.numChannels);commonCapabilities.codecs.push(rCodec);rCodec.rtcpFeedback=rCodec.rtcpFeedback.filter(function(fb){for(var j=0;j<lCodec.rtcpFeedback.length;j++){if(lCodec.rtcpFeedback[j].type===fb.type&&lCodec.rtcpFeedback[j].parameter===fb.parameter){return true}}return false});break}}});localCapabilities.headerExtensions.forEach(function(lHeaderExtension){for(var i=0;i<remoteCapabilities.headerExtensions.length;i++){var rHeaderExtension=remoteCapabilities.headerExtensions[i];if(lHeaderExtension.uri===rHeaderExtension.uri){commonCapabilities.headerExtensions.push(rHeaderExtension);break}}});return commonCapabilities}function isActionAllowedInSignalingState(action,type,signalingState){return{offer:{setLocalDescription:["stable","have-local-offer"],setRemoteDescription:["stable","have-remote-offer"]},answer:{setLocalDescription:["have-remote-offer","have-local-pranswer"],setRemoteDescription:["have-local-offer","have-remote-pranswer"]}}[type][action].indexOf(signalingState)!==-1}function maybeAddCandidate(iceTransport,candidate){var alreadyAdded=iceTransport.getRemoteCandidates().find(function(remoteCandidate){return candidate.foundation===remoteCandidate.foundation&&candidate.ip===remoteCandidate.ip&&candidate.port===remoteCandidate.port&&candidate.priority===remoteCandidate.priority&&candidate.protocol===remoteCandidate.protocol&&candidate.type===remoteCandidate.type});if(!alreadyAdded){iceTransport.addRemoteCandidate(candidate)}return!alreadyAdded}function makeError(name,description){var e=new Error(description);e.name=name;e.code={NotSupportedError:9,InvalidStateError:11,InvalidAccessError:15,TypeError:undefined,OperationError:undefined}[name];return e}module.exports=function(window,edgeVersion){function addTrackToStreamAndFireEvent(track,stream){stream.addTrack(track);stream.dispatchEvent(new window.MediaStreamTrackEvent("addtrack",{track:track}))}function removeTrackFromStreamAndFireEvent(track,stream){stream.removeTrack(track);stream.dispatchEvent(new window.MediaStreamTrackEvent("removetrack",{track:track}))}function fireAddTrack(pc,track,receiver,streams){var trackEvent=new Event("track");trackEvent.track=track;trackEvent.receiver=receiver;trackEvent.transceiver={receiver:receiver};trackEvent.streams=streams;window.setTimeout(function(){pc._dispatchEvent("track",trackEvent)})}var RTCPeerConnection=function(config){var pc=this;var _eventTarget=document.createDocumentFragment();["addEventListener","removeEventListener","dispatchEvent"].forEach(function(method){pc[method]=_eventTarget[method].bind(_eventTarget)});this.canTrickleIceCandidates=null;this.needNegotiation=false;this.localStreams=[];this.remoteStreams=[];this.localDescription=null;this.remoteDescription=null;this.signalingState="stable";this.iceConnectionState="new";this.connectionState="new";this.iceGatheringState="new";config=JSON.parse(JSON.stringify(config||{}));this.usingBundle=config.bundlePolicy==="max-bundle";if(config.rtcpMuxPolicy==="negotiate"){throw makeError("NotSupportedError","rtcpMuxPolicy 'negotiate' is not supported")}else if(!config.rtcpMuxPolicy){config.rtcpMuxPolicy="require"}switch(config.iceTransportPolicy){case"all":case"relay":break;default:config.iceTransportPolicy="all";break}switch(config.bundlePolicy){case"balanced":case"max-compat":case"max-bundle":break;default:config.bundlePolicy="balanced";break}config.iceServers=filterIceServers(config.iceServers||[],edgeVersion);this._iceGatherers=[];if(config.iceCandidatePoolSize){for(var i=config.iceCandidatePoolSize;i>0;i--){this._iceGatherers.push(new window.RTCIceGatherer({iceServers:config.iceServers,gatherPolicy:config.iceTransportPolicy}))}}else{config.iceCandidatePoolSize=0}this._config=config;this.transceivers=[];this._sdpSessionId=SDPUtils.generateSessionId();this._sdpSessionVersion=0;this._dtlsRole=undefined;this._isClosed=false};RTCPeerConnection.prototype.onicecandidate=null;RTCPeerConnection.prototype.onaddstream=null;RTCPeerConnection.prototype.ontrack=null;RTCPeerConnection.prototype.onremovestream=null;RTCPeerConnection.prototype.onsignalingstatechange=null;RTCPeerConnection.prototype.oniceconnectionstatechange=null;RTCPeerConnection.prototype.onconnectionstatechange=null;RTCPeerConnection.prototype.onicegatheringstatechange=null;RTCPeerConnection.prototype.onnegotiationneeded=null;RTCPeerConnection.prototype.ondatachannel=null;RTCPeerConnection.prototype._dispatchEvent=function(name,event){if(this._isClosed){return}this.dispatchEvent(event);if(typeof this["on"+name]==="function"){this["on"+name](event)}};RTCPeerConnection.prototype._emitGatheringStateChange=function(){var event=new Event("icegatheringstatechange");this._dispatchEvent("icegatheringstatechange",event)};RTCPeerConnection.prototype.getConfiguration=function(){return this._config};RTCPeerConnection.prototype.getLocalStreams=function(){return this.localStreams};RTCPeerConnection.prototype.getRemoteStreams=function(){return this.remoteStreams};RTCPeerConnection.prototype._createTransceiver=function(kind,doNotAdd){var hasBundleTransport=this.transceivers.length>0;var transceiver={track:null,iceGatherer:null,iceTransport:null,dtlsTransport:null,localCapabilities:null,remoteCapabilities:null,rtpSender:null,rtpReceiver:null,kind:kind,mid:null,sendEncodingParameters:null,recvEncodingParameters:null,stream:null,associatedRemoteMediaStreams:[],wantReceive:true};if(this.usingBundle&&hasBundleTransport){transceiver.iceTransport=this.transceivers[0].iceTransport;transceiver.dtlsTransport=this.transceivers[0].dtlsTransport}else{var transports=this._createIceAndDtlsTransports();transceiver.iceTransport=transports.iceTransport;transceiver.dtlsTransport=transports.dtlsTransport}if(!doNotAdd){this.transceivers.push(transceiver)}return transceiver};RTCPeerConnection.prototype.addTrack=function(track,stream){if(this._isClosed){throw makeError("InvalidStateError","Attempted to call addTrack on a closed peerconnection.")}var alreadyExists=this.transceivers.find(function(s){return s.track===track});if(alreadyExists){throw makeError("InvalidAccessError","Track already exists.")}var transceiver;for(var i=0;i<this.transceivers.length;i++){if(!this.transceivers[i].track&&this.transceivers[i].kind===track.kind){transceiver=this.transceivers[i]}}if(!transceiver){transceiver=this._createTransceiver(track.kind)}this._maybeFireNegotiationNeeded();if(this.localStreams.indexOf(stream)===-1){this.localStreams.push(stream)}transceiver.track=track;transceiver.stream=stream;transceiver.rtpSender=new window.RTCRtpSender(track,transceiver.dtlsTransport);return transceiver.rtpSender};RTCPeerConnection.prototype.addStream=function(stream){var pc=this;if(edgeVersion>=15025){stream.getTracks().forEach(function(track){pc.addTrack(track,stream)})}else{var clonedStream=stream.clone();stream.getTracks().forEach(function(track,idx){var clonedTrack=clonedStream.getTracks()[idx];track.addEventListener("enabled",function(event){clonedTrack.enabled=event.enabled})});clonedStream.getTracks().forEach(function(track){pc.addTrack(track,clonedStream)})}};RTCPeerConnection.prototype.removeTrack=function(sender){if(this._isClosed){throw makeError("InvalidStateError","Attempted to call removeTrack on a closed peerconnection.")}if(!(sender instanceof window.RTCRtpSender)){throw new TypeError("Argument 1 of RTCPeerConnection.removeTrack "+"does not implement interface RTCRtpSender.")}var transceiver=this.transceivers.find(function(t){return t.rtpSender===sender});if(!transceiver){throw makeError("InvalidAccessError","Sender was not created by this connection.")}var stream=transceiver.stream;transceiver.rtpSender.stop();transceiver.rtpSender=null;transceiver.track=null;transceiver.stream=null;var localStreams=this.transceivers.map(function(t){return t.stream});if(localStreams.indexOf(stream)===-1&&this.localStreams.indexOf(stream)>-1){this.localStreams.splice(this.localStreams.indexOf(stream),1)}this._maybeFireNegotiationNeeded()};RTCPeerConnection.prototype.removeStream=function(stream){var pc=this;stream.getTracks().forEach(function(track){var sender=pc.getSenders().find(function(s){return s.track===track});if(sender){pc.removeTrack(sender)}})};RTCPeerConnection.prototype.getSenders=function(){return this.transceivers.filter(function(transceiver){return!!transceiver.rtpSender}).map(function(transceiver){return transceiver.rtpSender})};RTCPeerConnection.prototype.getReceivers=function(){return this.transceivers.filter(function(transceiver){return!!transceiver.rtpReceiver}).map(function(transceiver){return transceiver.rtpReceiver})};RTCPeerConnection.prototype._createIceGatherer=function(sdpMLineIndex,usingBundle){var pc=this;if(usingBundle&&sdpMLineIndex>0){return this.transceivers[0].iceGatherer}else if(this._iceGatherers.length){return this._iceGatherers.shift()}var iceGatherer=new window.RTCIceGatherer({iceServers:this._config.iceServers,gatherPolicy:this._config.iceTransportPolicy});Object.defineProperty(iceGatherer,"state",{value:"new",writable:true});this.transceivers[sdpMLineIndex].bufferedCandidateEvents=[];this.transceivers[sdpMLineIndex].bufferCandidates=function(event){var end=!event.candidate||Object.keys(event.candidate).length===0;iceGatherer.state=end?"completed":"gathering";if(pc.transceivers[sdpMLineIndex].bufferedCandidateEvents!==null){pc.transceivers[sdpMLineIndex].bufferedCandidateEvents.push(event)}};iceGatherer.addEventListener("localcandidate",this.transceivers[sdpMLineIndex].bufferCandidates);return iceGatherer};RTCPeerConnection.prototype._gather=function(mid,sdpMLineIndex){var pc=this;var iceGatherer=this.transceivers[sdpMLineIndex].iceGatherer;if(iceGatherer.onlocalcandidate){return}var bufferedCandidateEvents=this.transceivers[sdpMLineIndex].bufferedCandidateEvents;this.transceivers[sdpMLineIndex].bufferedCandidateEvents=null;iceGatherer.removeEventListener("localcandidate",this.transceivers[sdpMLineIndex].bufferCandidates);iceGatherer.onlocalcandidate=function(evt){if(pc.usingBundle&&sdpMLineIndex>0){return}var event=new Event("icecandidate");event.candidate={sdpMid:mid,sdpMLineIndex:sdpMLineIndex};var cand=evt.candidate;var end=!cand||Object.keys(cand).length===0;if(end){if(iceGatherer.state==="new"||iceGatherer.state==="gathering"){iceGatherer.state="completed"}}else{if(iceGatherer.state==="new"){iceGatherer.state="gathering"}cand.component=1;cand.ufrag=iceGatherer.getLocalParameters().usernameFragment;var serializedCandidate=SDPUtils.writeCandidate(cand);event.candidate=Object.assign(event.candidate,SDPUtils.parseCandidate(serializedCandidate));event.candidate.candidate=serializedCandidate;event.candidate.toJSON=function(){return{candidate:event.candidate.candidate,sdpMid:event.candidate.sdpMid,sdpMLineIndex:event.candidate.sdpMLineIndex,usernameFragment:event.candidate.usernameFragment}}}var sections=SDPUtils.getMediaSections(pc.localDescription.sdp);if(!end){sections[event.candidate.sdpMLineIndex]+="a="+event.candidate.candidate+"\r\n"}else{sections[event.candidate.sdpMLineIndex]+="a=end-of-candidates\r\n"}pc.localDescription.sdp=SDPUtils.getDescription(pc.localDescription.sdp)+sections.join("");var complete=pc.transceivers.every(function(transceiver){return transceiver.iceGatherer&&transceiver.iceGatherer.state==="completed"});if(pc.iceGatheringState!=="gathering"){pc.iceGatheringState="gathering";pc._emitGatheringStateChange()}if(!end){pc._dispatchEvent("icecandidate",event)}if(complete){pc._dispatchEvent("icecandidate",new Event("icecandidate"));pc.iceGatheringState="complete";pc._emitGatheringStateChange()}};window.setTimeout(function(){bufferedCandidateEvents.forEach(function(e){iceGatherer.onlocalcandidate(e)})},0)};RTCPeerConnection.prototype._createIceAndDtlsTransports=function(){var pc=this;var iceTransport=new window.RTCIceTransport(null);iceTransport.onicestatechange=function(){pc._updateIceConnectionState();pc._updateConnectionState()};var dtlsTransport=new window.RTCDtlsTransport(iceTransport);dtlsTransport.ondtlsstatechange=function(){pc._updateConnectionState()};dtlsTransport.onerror=function(){Object.defineProperty(dtlsTransport,"state",{value:"failed",writable:true});pc._updateConnectionState()};return{iceTransport:iceTransport,dtlsTransport:dtlsTransport}};RTCPeerConnection.prototype._disposeIceAndDtlsTransports=function(sdpMLineIndex){var iceGatherer=this.transceivers[sdpMLineIndex].iceGatherer;if(iceGatherer){delete iceGatherer.onlocalcandidate;delete this.transceivers[sdpMLineIndex].iceGatherer}var iceTransport=this.transceivers[sdpMLineIndex].iceTransport;if(iceTransport){delete iceTransport.onicestatechange;delete this.transceivers[sdpMLineIndex].iceTransport}var dtlsTransport=this.transceivers[sdpMLineIndex].dtlsTransport;if(dtlsTransport){delete dtlsTransport.ondtlsstatechange;delete dtlsTransport.onerror;delete this.transceivers[sdpMLineIndex].dtlsTransport}};RTCPeerConnection.prototype._transceive=function(transceiver,send,recv){var params=getCommonCapabilities(transceiver.localCapabilities,transceiver.remoteCapabilities);if(send&&transceiver.rtpSender){params.encodings=transceiver.sendEncodingParameters;params.rtcp={cname:SDPUtils.localCName,compound:transceiver.rtcpParameters.compound};if(transceiver.recvEncodingParameters.length){params.rtcp.ssrc=transceiver.recvEncodingParameters[0].ssrc}transceiver.rtpSender.send(params)}if(recv&&transceiver.rtpReceiver&&params.codecs.length>0){if(transceiver.kind==="video"&&transceiver.recvEncodingParameters&&edgeVersion<15019){transceiver.recvEncodingParameters.forEach(function(p){delete p.rtx})}if(transceiver.recvEncodingParameters.length){params.encodings=transceiver.recvEncodingParameters}else{params.encodings=[{}]}params.rtcp={compound:transceiver.rtcpParameters.compound};if(transceiver.rtcpParameters.cname){params.rtcp.cname=transceiver.rtcpParameters.cname}if(transceiver.sendEncodingParameters.length){params.rtcp.ssrc=transceiver.sendEncodingParameters[0].ssrc}transceiver.rtpReceiver.receive(params)}};RTCPeerConnection.prototype.setLocalDescription=function(description){var pc=this;if(["offer","answer"].indexOf(description.type)===-1){return Promise.reject(makeError("TypeError",'Unsupported type "'+description.type+'"'))}if(!isActionAllowedInSignalingState("setLocalDescription",description.type,pc.signalingState)||pc._isClosed){return Promise.reject(makeError("InvalidStateError","Can not set local "+description.type+" in state "+pc.signalingState))}var sections;var sessionpart;if(description.type==="offer"){sections=SDPUtils.splitSections(description.sdp);sessionpart=sections.shift();sections.forEach(function(mediaSection,sdpMLineIndex){var caps=SDPUtils.parseRtpParameters(mediaSection);pc.transceivers[sdpMLineIndex].localCapabilities=caps});pc.transceivers.forEach(function(transceiver,sdpMLineIndex){pc._gather(transceiver.mid,sdpMLineIndex)})}else if(description.type==="answer"){sections=SDPUtils.splitSections(pc.remoteDescription.sdp);sessionpart=sections.shift();var isIceLite=SDPUtils.matchPrefix(sessionpart,"a=ice-lite").length>0;sections.forEach(function(mediaSection,sdpMLineIndex){var transceiver=pc.transceivers[sdpMLineIndex];var iceGatherer=transceiver.iceGatherer;var iceTransport=transceiver.iceTransport;var dtlsTransport=transceiver.dtlsTransport;var localCapabilities=transceiver.localCapabilities;var remoteCapabilities=transceiver.remoteCapabilities;var rejected=SDPUtils.isRejected(mediaSection)&&SDPUtils.matchPrefix(mediaSection,"a=bundle-only").length===0;if(!rejected&&!transceiver.rejected){var remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart);var remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart);if(isIceLite){remoteDtlsParameters.role="server"}if(!pc.usingBundle||sdpMLineIndex===0){pc._gather(transceiver.mid,sdpMLineIndex);if(iceTransport.state==="new"){iceTransport.start(iceGatherer,remoteIceParameters,isIceLite?"controlling":"controlled")}if(dtlsTransport.state==="new"){dtlsTransport.start(remoteDtlsParameters)}}var params=getCommonCapabilities(localCapabilities,remoteCapabilities);pc._transceive(transceiver,params.codecs.length>0,false)}})}pc.localDescription={type:description.type,sdp:description.sdp};if(description.type==="offer"){pc._updateSignalingState("have-local-offer")}else{pc._updateSignalingState("stable")}return Promise.resolve()};RTCPeerConnection.prototype.setRemoteDescription=function(description){var pc=this;if(["offer","answer"].indexOf(description.type)===-1){return Promise.reject(makeError("TypeError",'Unsupported type "'+description.type+'"'))}if(!isActionAllowedInSignalingState("setRemoteDescription",description.type,pc.signalingState)||pc._isClosed){return Promise.reject(makeError("InvalidStateError","Can not set remote "+description.type+" in state "+pc.signalingState))}var streams={};pc.remoteStreams.forEach(function(stream){streams[stream.id]=stream});var receiverList=[];var sections=SDPUtils.splitSections(description.sdp);var sessionpart=sections.shift();var isIceLite=SDPUtils.matchPrefix(sessionpart,"a=ice-lite").length>0;var usingBundle=SDPUtils.matchPrefix(sessionpart,"a=group:BUNDLE ").length>0;pc.usingBundle=usingBundle;var iceOptions=SDPUtils.matchPrefix(sessionpart,"a=ice-options:")[0];if(iceOptions){pc.canTrickleIceCandidates=iceOptions.substr(14).split(" ").indexOf("trickle")>=0}else{pc.canTrickleIceCandidates=false}sections.forEach(function(mediaSection,sdpMLineIndex){var lines=SDPUtils.splitLines(mediaSection);var kind=SDPUtils.getKind(mediaSection);var rejected=SDPUtils.isRejected(mediaSection)&&SDPUtils.matchPrefix(mediaSection,"a=bundle-only").length===0;var protocol=lines[0].substr(2).split(" ")[2];var direction=SDPUtils.getDirection(mediaSection,sessionpart);var remoteMsid=SDPUtils.parseMsid(mediaSection);var mid=SDPUtils.getMid(mediaSection)||SDPUtils.generateIdentifier();if(kind==="application"&&protocol==="DTLS/SCTP"||rejected){pc.transceivers[sdpMLineIndex]={mid:mid,kind:kind,rejected:true};return}if(!rejected&&pc.transceivers[sdpMLineIndex]&&pc.transceivers[sdpMLineIndex].rejected){pc.transceivers[sdpMLineIndex]=pc._createTransceiver(kind,true)}var transceiver;var iceGatherer;var iceTransport;var dtlsTransport;var rtpReceiver;var sendEncodingParameters;var recvEncodingParameters;var localCapabilities;var track;var remoteCapabilities=SDPUtils.parseRtpParameters(mediaSection);var remoteIceParameters;var remoteDtlsParameters;if(!rejected){remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart);remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart);remoteDtlsParameters.role="client"}recvEncodingParameters=SDPUtils.parseRtpEncodingParameters(mediaSection);var rtcpParameters=SDPUtils.parseRtcpParameters(mediaSection);var isComplete=SDPUtils.matchPrefix(mediaSection,"a=end-of-candidates",sessionpart).length>0;var cands=SDPUtils.matchPrefix(mediaSection,"a=candidate:").map(function(cand){return SDPUtils.parseCandidate(cand)}).filter(function(cand){return cand.component===1});if((description.type==="offer"||description.type==="answer")&&!rejected&&usingBundle&&sdpMLineIndex>0&&pc.transceivers[sdpMLineIndex]){pc._disposeIceAndDtlsTransports(sdpMLineIndex);pc.transceivers[sdpMLineIndex].iceGatherer=pc.transceivers[0].iceGatherer;pc.transceivers[sdpMLineIndex].iceTransport=pc.transceivers[0].iceTransport;pc.transceivers[sdpMLineIndex].dtlsTransport=pc.transceivers[0].dtlsTransport;if(pc.transceivers[sdpMLineIndex].rtpSender){pc.transceivers[sdpMLineIndex].rtpSender.setTransport(pc.transceivers[0].dtlsTransport)}if(pc.transceivers[sdpMLineIndex].rtpReceiver){pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(pc.transceivers[0].dtlsTransport)}}if(description.type==="offer"&&!rejected){transceiver=pc.transceivers[sdpMLineIndex]||pc._createTransceiver(kind);transceiver.mid=mid;if(!transceiver.iceGatherer){transceiver.iceGatherer=pc._createIceGatherer(sdpMLineIndex,usingBundle)}if(cands.length&&transceiver.iceTransport.state==="new"){if(isComplete&&(!usingBundle||sdpMLineIndex===0)){transceiver.iceTransport.setRemoteCandidates(cands)}else{cands.forEach(function(candidate){maybeAddCandidate(transceiver.iceTransport,candidate)})}}localCapabilities=window.RTCRtpReceiver.getCapabilities(kind);if(edgeVersion<15019){localCapabilities.codecs=localCapabilities.codecs.filter(function(codec){return codec.name!=="rtx"})}sendEncodingParameters=transceiver.sendEncodingParameters||[{ssrc:(2*sdpMLineIndex+2)*1001}];var isNewTrack=false;if(direction==="sendrecv"||direction==="sendonly"){isNewTrack=!transceiver.rtpReceiver;rtpReceiver=transceiver.rtpReceiver||new window.RTCRtpReceiver(transceiver.dtlsTransport,kind);if(isNewTrack){var stream;track=rtpReceiver.track;if(remoteMsid&&remoteMsid.stream==="-"){}else if(remoteMsid){if(!streams[remoteMsid.stream]){streams[remoteMsid.stream]=new window.MediaStream;Object.defineProperty(streams[remoteMsid.stream],"id",{get:function(){return remoteMsid.stream}})}Object.defineProperty(track,"id",{get:function(){return remoteMsid.track}});stream=streams[remoteMsid.stream]}else{if(!streams.default){streams.default=new window.MediaStream}stream=streams.default}if(stream){addTrackToStreamAndFireEvent(track,stream);transceiver.associatedRemoteMediaStreams.push(stream)}receiverList.push([track,rtpReceiver,stream])}}else if(transceiver.rtpReceiver&&transceiver.rtpReceiver.track){transceiver.associatedRemoteMediaStreams.forEach(function(s){var nativeTrack=s.getTracks().find(function(t){return t.id===transceiver.rtpReceiver.track.id});if(nativeTrack){removeTrackFromStreamAndFireEvent(nativeTrack,s)}});transceiver.associatedRemoteMediaStreams=[]}transceiver.localCapabilities=localCapabilities;transceiver.remoteCapabilities=remoteCapabilities;transceiver.rtpReceiver=rtpReceiver;transceiver.rtcpParameters=rtcpParameters;transceiver.sendEncodingParameters=sendEncodingParameters;transceiver.recvEncodingParameters=recvEncodingParameters;pc._transceive(pc.transceivers[sdpMLineIndex],false,isNewTrack)}else if(description.type==="answer"&&!rejected){transceiver=pc.transceivers[sdpMLineIndex];iceGatherer=transceiver.iceGatherer;iceTransport=transceiver.iceTransport;dtlsTransport=transceiver.dtlsTransport;rtpReceiver=transceiver.rtpReceiver;sendEncodingParameters=transceiver.sendEncodingParameters;localCapabilities=transceiver.localCapabilities;pc.transceivers[sdpMLineIndex].recvEncodingParameters=recvEncodingParameters;pc.transceivers[sdpMLineIndex].remoteCapabilities=remoteCapabilities;pc.transceivers[sdpMLineIndex].rtcpParameters=rtcpParameters;if(cands.length&&iceTransport.state==="new"){if((isIceLite||isComplete)&&(!usingBundle||sdpMLineIndex===0)){iceTransport.setRemoteCandidates(cands)}else{cands.forEach(function(candidate){maybeAddCandidate(transceiver.iceTransport,candidate)})}}if(!usingBundle||sdpMLineIndex===0){if(iceTransport.state==="new"){iceTransport.start(iceGatherer,remoteIceParameters,"controlling")}if(dtlsTransport.state==="new"){dtlsTransport.start(remoteDtlsParameters)}}pc._transceive(transceiver,direction==="sendrecv"||direction==="recvonly",direction==="sendrecv"||direction==="sendonly");if(rtpReceiver&&(direction==="sendrecv"||direction==="sendonly")){track=rtpReceiver.track;if(remoteMsid){if(!streams[remoteMsid.stream]){streams[remoteMsid.stream]=new window.MediaStream}addTrackToStreamAndFireEvent(track,streams[remoteMsid.stream]);receiverList.push([track,rtpReceiver,streams[remoteMsid.stream]])}else{if(!streams.default){streams.default=new window.MediaStream}addTrackToStreamAndFireEvent(track,streams.default);receiverList.push([track,rtpReceiver,streams.default])}}else{delete transceiver.rtpReceiver}}});if(pc._dtlsRole===undefined){pc._dtlsRole=description.type==="offer"?"active":"passive"}pc.remoteDescription={type:description.type,sdp:description.sdp};if(description.type==="offer"){pc._updateSignalingState("have-remote-offer")}else{pc._updateSignalingState("stable")}Object.keys(streams).forEach(function(sid){var stream=streams[sid];if(stream.getTracks().length){if(pc.remoteStreams.indexOf(stream)===-1){pc.remoteStreams.push(stream);var event=new Event("addstream");event.stream=stream;window.setTimeout(function(){pc._dispatchEvent("addstream",event)})}receiverList.forEach(function(item){var track=item[0];var receiver=item[1];if(stream.id!==item[2].id){return}fireAddTrack(pc,track,receiver,[stream])})}});receiverList.forEach(function(item){if(item[2]){return}fireAddTrack(pc,item[0],item[1],[])});window.setTimeout(function(){if(!(pc&&pc.transceivers)){return}pc.transceivers.forEach(function(transceiver){if(transceiver.iceTransport&&transceiver.iceTransport.state==="new"&&transceiver.iceTransport.getRemoteCandidates().length>0){console.warn("Timeout for addRemoteCandidate. Consider sending "+"an end-of-candidates notification");transceiver.iceTransport.addRemoteCandidate({})}})},4e3);return Promise.resolve()};RTCPeerConnection.prototype.close=function(){this.transceivers.forEach(function(transceiver){if(transceiver.iceTransport){transceiver.iceTransport.stop()}if(transceiver.dtlsTransport){transceiver.dtlsTransport.stop()}if(transceiver.rtpSender){transceiver.rtpSender.stop()}if(transceiver.rtpReceiver){transceiver.rtpReceiver.stop()}});this._isClosed=true;this._updateSignalingState("closed")};RTCPeerConnection.prototype._updateSignalingState=function(newState){this.signalingState=newState;var event=new Event("signalingstatechange");this._dispatchEvent("signalingstatechange",event)};RTCPeerConnection.prototype._maybeFireNegotiationNeeded=function(){var pc=this;if(this.signalingState!=="stable"||this.needNegotiation===true){return}this.needNegotiation=true;window.setTimeout(function(){if(pc.needNegotiation){pc.needNegotiation=false;var event=new Event("negotiationneeded");pc._dispatchEvent("negotiationneeded",event)}},0)};RTCPeerConnection.prototype._updateIceConnectionState=function(){var newState;var states={new:0,closed:0,checking:0,connected:0,completed:0,disconnected:0,failed:0};this.transceivers.forEach(function(transceiver){states[transceiver.iceTransport.state]++});newState="new";if(states.failed>0){newState="failed"}else if(states.checking>0){newState="checking"}else if(states.disconnected>0){newState="disconnected"}else if(states.new>0){newState="new"}else if(states.connected>0){newState="connected"}else if(states.completed>0){newState="completed"}if(newState!==this.iceConnectionState){this.iceConnectionState=newState;var event=new Event("iceconnectionstatechange");this._dispatchEvent("iceconnectionstatechange",event)}};RTCPeerConnection.prototype._updateConnectionState=function(){var newState;var states={new:0,closed:0,connecting:0,connected:0,completed:0,disconnected:0,failed:0};this.transceivers.forEach(function(transceiver){states[transceiver.iceTransport.state]++;states[transceiver.dtlsTransport.state]++});states.connected+=states.completed;newState="new";if(states.failed>0){newState="failed"}else if(states.connecting>0){newState="connecting"}else if(states.disconnected>0){newState="disconnected"}else if(states.new>0){newState="new"}else if(states.connected>0){newState="connected"}if(newState!==this.connectionState){this.connectionState=newState;var event=new Event("connectionstatechange");this._dispatchEvent("connectionstatechange",event)}};RTCPeerConnection.prototype.createOffer=function(){var pc=this;if(pc._isClosed){return Promise.reject(makeError("InvalidStateError","Can not call createOffer after close"))}var numAudioTracks=pc.transceivers.filter(function(t){return t.kind==="audio"}).length;var numVideoTracks=pc.transceivers.filter(function(t){return t.kind==="video"}).length;var offerOptions=arguments[0];if(offerOptions){if(offerOptions.mandatory||offerOptions.optional){throw new TypeError("Legacy mandatory/optional constraints not supported.")}if(offerOptions.offerToReceiveAudio!==undefined){if(offerOptions.offerToReceiveAudio===true){numAudioTracks=1}else if(offerOptions.offerToReceiveAudio===false){
numAudioTracks=0}else{numAudioTracks=offerOptions.offerToReceiveAudio}}if(offerOptions.offerToReceiveVideo!==undefined){if(offerOptions.offerToReceiveVideo===true){numVideoTracks=1}else if(offerOptions.offerToReceiveVideo===false){numVideoTracks=0}else{numVideoTracks=offerOptions.offerToReceiveVideo}}}pc.transceivers.forEach(function(transceiver){if(transceiver.kind==="audio"){numAudioTracks--;if(numAudioTracks<0){transceiver.wantReceive=false}}else if(transceiver.kind==="video"){numVideoTracks--;if(numVideoTracks<0){transceiver.wantReceive=false}}});while(numAudioTracks>0||numVideoTracks>0){if(numAudioTracks>0){pc._createTransceiver("audio");numAudioTracks--}if(numVideoTracks>0){pc._createTransceiver("video");numVideoTracks--}}var sdp=SDPUtils.writeSessionBoilerplate(pc._sdpSessionId,pc._sdpSessionVersion++);pc.transceivers.forEach(function(transceiver,sdpMLineIndex){var track=transceiver.track;var kind=transceiver.kind;var mid=transceiver.mid||SDPUtils.generateIdentifier();transceiver.mid=mid;if(!transceiver.iceGatherer){transceiver.iceGatherer=pc._createIceGatherer(sdpMLineIndex,pc.usingBundle)}var localCapabilities=window.RTCRtpSender.getCapabilities(kind);if(edgeVersion<15019){localCapabilities.codecs=localCapabilities.codecs.filter(function(codec){return codec.name!=="rtx"})}localCapabilities.codecs.forEach(function(codec){if(codec.name==="H264"&&codec.parameters["level-asymmetry-allowed"]===undefined){codec.parameters["level-asymmetry-allowed"]="1"}if(transceiver.remoteCapabilities&&transceiver.remoteCapabilities.codecs){transceiver.remoteCapabilities.codecs.forEach(function(remoteCodec){if(codec.name.toLowerCase()===remoteCodec.name.toLowerCase()&&codec.clockRate===remoteCodec.clockRate){codec.preferredPayloadType=remoteCodec.payloadType}})}});localCapabilities.headerExtensions.forEach(function(hdrExt){var remoteExtensions=transceiver.remoteCapabilities&&transceiver.remoteCapabilities.headerExtensions||[];remoteExtensions.forEach(function(rHdrExt){if(hdrExt.uri===rHdrExt.uri){hdrExt.id=rHdrExt.id}})});var sendEncodingParameters=transceiver.sendEncodingParameters||[{ssrc:(2*sdpMLineIndex+1)*1001}];if(track){if(edgeVersion>=15019&&kind==="video"&&!sendEncodingParameters[0].rtx){sendEncodingParameters[0].rtx={ssrc:sendEncodingParameters[0].ssrc+1}}}if(transceiver.wantReceive){transceiver.rtpReceiver=new window.RTCRtpReceiver(transceiver.dtlsTransport,kind)}transceiver.localCapabilities=localCapabilities;transceiver.sendEncodingParameters=sendEncodingParameters});if(pc._config.bundlePolicy!=="max-compat"){sdp+="a=group:BUNDLE "+pc.transceivers.map(function(t){return t.mid}).join(" ")+"\r\n"}sdp+="a=ice-options:trickle\r\n";pc.transceivers.forEach(function(transceiver,sdpMLineIndex){sdp+=writeMediaSection(transceiver,transceiver.localCapabilities,"offer",transceiver.stream,pc._dtlsRole);sdp+="a=rtcp-rsize\r\n";if(transceiver.iceGatherer&&pc.iceGatheringState!=="new"&&(sdpMLineIndex===0||!pc.usingBundle)){transceiver.iceGatherer.getLocalCandidates().forEach(function(cand){cand.component=1;sdp+="a="+SDPUtils.writeCandidate(cand)+"\r\n"});if(transceiver.iceGatherer.state==="completed"){sdp+="a=end-of-candidates\r\n"}}});var desc=new window.RTCSessionDescription({type:"offer",sdp:sdp});return Promise.resolve(desc)};RTCPeerConnection.prototype.createAnswer=function(){var pc=this;if(pc._isClosed){return Promise.reject(makeError("InvalidStateError","Can not call createAnswer after close"))}if(!(pc.signalingState==="have-remote-offer"||pc.signalingState==="have-local-pranswer")){return Promise.reject(makeError("InvalidStateError","Can not call createAnswer in signalingState "+pc.signalingState))}var sdp=SDPUtils.writeSessionBoilerplate(pc._sdpSessionId,pc._sdpSessionVersion++);if(pc.usingBundle){sdp+="a=group:BUNDLE "+pc.transceivers.map(function(t){return t.mid}).join(" ")+"\r\n"}var mediaSectionsInOffer=SDPUtils.getMediaSections(pc.remoteDescription.sdp).length;pc.transceivers.forEach(function(transceiver,sdpMLineIndex){if(sdpMLineIndex+1>mediaSectionsInOffer){return}if(transceiver.rejected){if(transceiver.kind==="application"){sdp+="m=application 0 DTLS/SCTP 5000\r\n"}else if(transceiver.kind==="audio"){sdp+="m=audio 0 UDP/TLS/RTP/SAVPF 0\r\n"+"a=rtpmap:0 PCMU/8000\r\n"}else if(transceiver.kind==="video"){sdp+="m=video 0 UDP/TLS/RTP/SAVPF 120\r\n"+"a=rtpmap:120 VP8/90000\r\n"}sdp+="c=IN IP4 0.0.0.0\r\n"+"a=inactive\r\n"+"a=mid:"+transceiver.mid+"\r\n";return}if(transceiver.stream){var localTrack;if(transceiver.kind==="audio"){localTrack=transceiver.stream.getAudioTracks()[0]}else if(transceiver.kind==="video"){localTrack=transceiver.stream.getVideoTracks()[0]}if(localTrack){if(edgeVersion>=15019&&transceiver.kind==="video"&&!transceiver.sendEncodingParameters[0].rtx){transceiver.sendEncodingParameters[0].rtx={ssrc:transceiver.sendEncodingParameters[0].ssrc+1}}}}var commonCapabilities=getCommonCapabilities(transceiver.localCapabilities,transceiver.remoteCapabilities);var hasRtx=commonCapabilities.codecs.filter(function(c){return c.name.toLowerCase()==="rtx"}).length;if(!hasRtx&&transceiver.sendEncodingParameters[0].rtx){delete transceiver.sendEncodingParameters[0].rtx}sdp+=writeMediaSection(transceiver,commonCapabilities,"answer",transceiver.stream,pc._dtlsRole);if(transceiver.rtcpParameters&&transceiver.rtcpParameters.reducedSize){sdp+="a=rtcp-rsize\r\n"}});var desc=new window.RTCSessionDescription({type:"answer",sdp:sdp});return Promise.resolve(desc)};RTCPeerConnection.prototype.addIceCandidate=function(candidate){var pc=this;var sections;if(candidate&&!(candidate.sdpMLineIndex!==undefined||candidate.sdpMid)){return Promise.reject(new TypeError("sdpMLineIndex or sdpMid required"))}return new Promise(function(resolve,reject){if(!pc.remoteDescription){return reject(makeError("InvalidStateError","Can not add ICE candidate without a remote description"))}else if(!candidate||candidate.candidate===""){for(var j=0;j<pc.transceivers.length;j++){if(pc.transceivers[j].rejected){continue}pc.transceivers[j].iceTransport.addRemoteCandidate({});sections=SDPUtils.getMediaSections(pc.remoteDescription.sdp);sections[j]+="a=end-of-candidates\r\n";pc.remoteDescription.sdp=SDPUtils.getDescription(pc.remoteDescription.sdp)+sections.join("");if(pc.usingBundle){break}}}else{var sdpMLineIndex=candidate.sdpMLineIndex;if(candidate.sdpMid){for(var i=0;i<pc.transceivers.length;i++){if(pc.transceivers[i].mid===candidate.sdpMid){sdpMLineIndex=i;break}}}var transceiver=pc.transceivers[sdpMLineIndex];if(transceiver){if(transceiver.rejected){return resolve()}var cand=Object.keys(candidate.candidate).length>0?SDPUtils.parseCandidate(candidate.candidate):{};if(cand.protocol==="tcp"&&(cand.port===0||cand.port===9)){return resolve()}if(cand.component&&cand.component!==1){return resolve()}if(sdpMLineIndex===0||sdpMLineIndex>0&&transceiver.iceTransport!==pc.transceivers[0].iceTransport){if(!maybeAddCandidate(transceiver.iceTransport,cand)){return reject(makeError("OperationError","Can not add ICE candidate"))}}var candidateString=candidate.candidate.trim();if(candidateString.indexOf("a=")===0){candidateString=candidateString.substr(2)}sections=SDPUtils.getMediaSections(pc.remoteDescription.sdp);sections[sdpMLineIndex]+="a="+(cand.type?candidateString:"end-of-candidates")+"\r\n";pc.remoteDescription.sdp=SDPUtils.getDescription(pc.remoteDescription.sdp)+sections.join("")}else{return reject(makeError("OperationError","Can not add ICE candidate"))}}resolve()})};RTCPeerConnection.prototype.getStats=function(){var promises=[];this.transceivers.forEach(function(transceiver){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach(function(method){if(transceiver[method]){promises.push(transceiver[method].getStats())}})});var fixStatsType=function(stat){return{inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[stat.type]||stat.type};return new Promise(function(resolve){var results=new Map;Promise.all(promises).then(function(res){res.forEach(function(result){Object.keys(result).forEach(function(id){result[id].type=fixStatsType(result[id]);results.set(id,result[id])})});resolve(results)})})};var methods=["createOffer","createAnswer"];methods.forEach(function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;if(typeof args[0]==="function"||typeof args[1]==="function"){return nativeMethod.apply(this,[arguments[2]]).then(function(description){if(typeof args[0]==="function"){args[0].apply(null,[description])}},function(error){if(typeof args[1]==="function"){args[1].apply(null,[error])}})}return nativeMethod.apply(this,arguments)}});methods=["setLocalDescription","setRemoteDescription","addIceCandidate"];methods.forEach(function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;if(typeof args[1]==="function"||typeof args[2]==="function"){return nativeMethod.apply(this,arguments).then(function(){if(typeof args[1]==="function"){args[1].apply(null)}},function(error){if(typeof args[2]==="function"){args[2].apply(null,[error])}})}return nativeMethod.apply(this,arguments)}});["getStats"].forEach(function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;if(typeof args[1]==="function"){return nativeMethod.apply(this,arguments).then(function(){if(typeof args[1]==="function"){args[1].apply(null)}})}return nativeMethod.apply(this,arguments)}});return RTCPeerConnection}},{sdp:2}],2:[function(require,module,exports){"use strict";var SDPUtils={};SDPUtils.generateIdentifier=function(){return Math.random().toString(36).substr(2,10)};SDPUtils.localCName=SDPUtils.generateIdentifier();SDPUtils.splitLines=function(blob){return blob.trim().split("\n").map(function(line){return line.trim()})};SDPUtils.splitSections=function(blob){var parts=blob.split("\nm=");return parts.map(function(part,index){return(index>0?"m="+part:part).trim()+"\r\n"})};SDPUtils.getDescription=function(blob){var sections=SDPUtils.splitSections(blob);return sections&&sections[0]};SDPUtils.getMediaSections=function(blob){var sections=SDPUtils.splitSections(blob);sections.shift();return sections};SDPUtils.matchPrefix=function(blob,prefix){return SDPUtils.splitLines(blob).filter(function(line){return line.indexOf(prefix)===0})};SDPUtils.parseCandidate=function(line){var parts;if(line.indexOf("a=candidate:")===0){parts=line.substring(12).split(" ")}else{parts=line.substring(10).split(" ")}var candidate={foundation:parts[0],component:parseInt(parts[1],10),protocol:parts[2].toLowerCase(),priority:parseInt(parts[3],10),ip:parts[4],port:parseInt(parts[5],10),type:parts[7]};for(var i=8;i<parts.length;i+=2){switch(parts[i]){case"raddr":candidate.relatedAddress=parts[i+1];break;case"rport":candidate.relatedPort=parseInt(parts[i+1],10);break;case"tcptype":candidate.tcpType=parts[i+1];break;case"ufrag":candidate.ufrag=parts[i+1];candidate.usernameFragment=parts[i+1];break;default:candidate[parts[i]]=parts[i+1];break}}return candidate};SDPUtils.writeCandidate=function(candidate){var sdp=[];sdp.push(candidate.foundation);sdp.push(candidate.component);sdp.push(candidate.protocol.toUpperCase());sdp.push(candidate.priority);sdp.push(candidate.ip);sdp.push(candidate.port);var type=candidate.type;sdp.push("typ");sdp.push(type);if(type!=="host"&&candidate.relatedAddress&&candidate.relatedPort){sdp.push("raddr");sdp.push(candidate.relatedAddress);sdp.push("rport");sdp.push(candidate.relatedPort)}if(candidate.tcpType&&candidate.protocol.toLowerCase()==="tcp"){sdp.push("tcptype");sdp.push(candidate.tcpType)}if(candidate.usernameFragment||candidate.ufrag){sdp.push("ufrag");sdp.push(candidate.usernameFragment||candidate.ufrag)}return"candidate:"+sdp.join(" ")};SDPUtils.parseIceOptions=function(line){return line.substr(14).split(" ")};SDPUtils.parseRtpMap=function(line){var parts=line.substr(9).split(" ");var parsed={payloadType:parseInt(parts.shift(),10)};parts=parts[0].split("/");parsed.name=parts[0];parsed.clockRate=parseInt(parts[1],10);parsed.numChannels=parts.length===3?parseInt(parts[2],10):1;return parsed};SDPUtils.writeRtpMap=function(codec){var pt=codec.payloadType;if(codec.preferredPayloadType!==undefined){pt=codec.preferredPayloadType}return"a=rtpmap:"+pt+" "+codec.name+"/"+codec.clockRate+(codec.numChannels!==1?"/"+codec.numChannels:"")+"\r\n"};SDPUtils.parseExtmap=function(line){var parts=line.substr(9).split(" ");return{id:parseInt(parts[0],10),direction:parts[0].indexOf("/")>0?parts[0].split("/")[1]:"sendrecv",uri:parts[1]}};SDPUtils.writeExtmap=function(headerExtension){return"a=extmap:"+(headerExtension.id||headerExtension.preferredId)+(headerExtension.direction&&headerExtension.direction!=="sendrecv"?"/"+headerExtension.direction:"")+" "+headerExtension.uri+"\r\n"};SDPUtils.parseFmtp=function(line){var parsed={};var kv;var parts=line.substr(line.indexOf(" ")+1).split(";");for(var j=0;j<parts.length;j++){kv=parts[j].trim().split("=");parsed[kv[0].trim()]=kv[1]}return parsed};SDPUtils.writeFmtp=function(codec){var line="";var pt=codec.payloadType;if(codec.preferredPayloadType!==undefined){pt=codec.preferredPayloadType}if(codec.parameters&&Object.keys(codec.parameters).length){var params=[];Object.keys(codec.parameters).forEach(function(param){params.push(param+"="+codec.parameters[param])});line+="a=fmtp:"+pt+" "+params.join(";")+"\r\n"}return line};SDPUtils.parseRtcpFb=function(line){var parts=line.substr(line.indexOf(" ")+1).split(" ");return{type:parts.shift(),parameter:parts.join(" ")}};SDPUtils.writeRtcpFb=function(codec){var lines="";var pt=codec.payloadType;if(codec.preferredPayloadType!==undefined){pt=codec.preferredPayloadType}if(codec.rtcpFeedback&&codec.rtcpFeedback.length){codec.rtcpFeedback.forEach(function(fb){lines+="a=rtcp-fb:"+pt+" "+fb.type+(fb.parameter&&fb.parameter.length?" "+fb.parameter:"")+"\r\n"})}return lines};SDPUtils.parseSsrcMedia=function(line){var sp=line.indexOf(" ");var parts={ssrc:parseInt(line.substr(7,sp-7),10)};var colon=line.indexOf(":",sp);if(colon>-1){parts.attribute=line.substr(sp+1,colon-sp-1);parts.value=line.substr(colon+1)}else{parts.attribute=line.substr(sp+1)}return parts};SDPUtils.getMid=function(mediaSection){var mid=SDPUtils.matchPrefix(mediaSection,"a=mid:")[0];if(mid){return mid.substr(6)}};SDPUtils.parseFingerprint=function(line){var parts=line.substr(14).split(" ");return{algorithm:parts[0].toLowerCase(),value:parts[1]}};SDPUtils.getDtlsParameters=function(mediaSection,sessionpart){var lines=SDPUtils.matchPrefix(mediaSection+sessionpart,"a=fingerprint:");return{role:"auto",fingerprints:lines.map(SDPUtils.parseFingerprint)}};SDPUtils.writeDtlsParameters=function(params,setupType){var sdp="a=setup:"+setupType+"\r\n";params.fingerprints.forEach(function(fp){sdp+="a=fingerprint:"+fp.algorithm+" "+fp.value+"\r\n"});return sdp};SDPUtils.getIceParameters=function(mediaSection,sessionpart){var lines=SDPUtils.splitLines(mediaSection);lines=lines.concat(SDPUtils.splitLines(sessionpart));var iceParameters={usernameFragment:lines.filter(function(line){return line.indexOf("a=ice-ufrag:")===0})[0].substr(12),password:lines.filter(function(line){return line.indexOf("a=ice-pwd:")===0})[0].substr(10)};return iceParameters};SDPUtils.writeIceParameters=function(params){return"a=ice-ufrag:"+params.usernameFragment+"\r\n"+"a=ice-pwd:"+params.password+"\r\n"};SDPUtils.parseRtpParameters=function(mediaSection){var description={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]};var lines=SDPUtils.splitLines(mediaSection);var mline=lines[0].split(" ");for(var i=3;i<mline.length;i++){var pt=mline[i];var rtpmapline=SDPUtils.matchPrefix(mediaSection,"a=rtpmap:"+pt+" ")[0];if(rtpmapline){var codec=SDPUtils.parseRtpMap(rtpmapline);var fmtps=SDPUtils.matchPrefix(mediaSection,"a=fmtp:"+pt+" ");codec.parameters=fmtps.length?SDPUtils.parseFmtp(fmtps[0]):{};codec.rtcpFeedback=SDPUtils.matchPrefix(mediaSection,"a=rtcp-fb:"+pt+" ").map(SDPUtils.parseRtcpFb);description.codecs.push(codec);switch(codec.name.toUpperCase()){case"RED":case"ULPFEC":description.fecMechanisms.push(codec.name.toUpperCase());break;default:break}}}SDPUtils.matchPrefix(mediaSection,"a=extmap:").forEach(function(line){description.headerExtensions.push(SDPUtils.parseExtmap(line))});return description};SDPUtils.writeRtpDescription=function(kind,caps){var sdp="";sdp+="m="+kind+" ";sdp+=caps.codecs.length>0?"9":"0";sdp+=" UDP/TLS/RTP/SAVPF ";sdp+=caps.codecs.map(function(codec){if(codec.preferredPayloadType!==undefined){return codec.preferredPayloadType}return codec.payloadType}).join(" ")+"\r\n";sdp+="c=IN IP4 0.0.0.0\r\n";sdp+="a=rtcp:9 IN IP4 0.0.0.0\r\n";caps.codecs.forEach(function(codec){sdp+=SDPUtils.writeRtpMap(codec);sdp+=SDPUtils.writeFmtp(codec);sdp+=SDPUtils.writeRtcpFb(codec)});var maxptime=0;caps.codecs.forEach(function(codec){if(codec.maxptime>maxptime){maxptime=codec.maxptime}});if(maxptime>0){sdp+="a=maxptime:"+maxptime+"\r\n"}sdp+="a=rtcp-mux\r\n";caps.headerExtensions.forEach(function(extension){sdp+=SDPUtils.writeExtmap(extension)});return sdp};SDPUtils.parseRtpEncodingParameters=function(mediaSection){var encodingParameters=[];var description=SDPUtils.parseRtpParameters(mediaSection);var hasRed=description.fecMechanisms.indexOf("RED")!==-1;var hasUlpfec=description.fecMechanisms.indexOf("ULPFEC")!==-1;var ssrcs=SDPUtils.matchPrefix(mediaSection,"a=ssrc:").map(function(line){return SDPUtils.parseSsrcMedia(line)}).filter(function(parts){return parts.attribute==="cname"});var primarySsrc=ssrcs.length>0&&ssrcs[0].ssrc;var secondarySsrc;var flows=SDPUtils.matchPrefix(mediaSection,"a=ssrc-group:FID").map(function(line){var parts=line.split(" ");parts.shift();return parts.map(function(part){return parseInt(part,10)})});if(flows.length>0&&flows[0].length>1&&flows[0][0]===primarySsrc){secondarySsrc=flows[0][1]}description.codecs.forEach(function(codec){if(codec.name.toUpperCase()==="RTX"&&codec.parameters.apt){var encParam={ssrc:primarySsrc,codecPayloadType:parseInt(codec.parameters.apt,10),rtx:{ssrc:secondarySsrc}};encodingParameters.push(encParam);if(hasRed){encParam=JSON.parse(JSON.stringify(encParam));encParam.fec={ssrc:secondarySsrc,mechanism:hasUlpfec?"red+ulpfec":"red"};encodingParameters.push(encParam)}}});if(encodingParameters.length===0&&primarySsrc){encodingParameters.push({ssrc:primarySsrc})}var bandwidth=SDPUtils.matchPrefix(mediaSection,"b=");if(bandwidth.length){if(bandwidth[0].indexOf("b=TIAS:")===0){bandwidth=parseInt(bandwidth[0].substr(7),10)}else if(bandwidth[0].indexOf("b=AS:")===0){bandwidth=parseInt(bandwidth[0].substr(5),10)*1e3*.95-50*40*8}else{bandwidth=undefined}encodingParameters.forEach(function(params){params.maxBitrate=bandwidth})}return encodingParameters};SDPUtils.parseRtcpParameters=function(mediaSection){var rtcpParameters={};var cname;var remoteSsrc=SDPUtils.matchPrefix(mediaSection,"a=ssrc:").map(function(line){return SDPUtils.parseSsrcMedia(line)}).filter(function(obj){return obj.attribute==="cname"})[0];if(remoteSsrc){rtcpParameters.cname=remoteSsrc.value;rtcpParameters.ssrc=remoteSsrc.ssrc}var rsize=SDPUtils.matchPrefix(mediaSection,"a=rtcp-rsize");rtcpParameters.reducedSize=rsize.length>0;rtcpParameters.compound=rsize.length===0;var mux=SDPUtils.matchPrefix(mediaSection,"a=rtcp-mux");rtcpParameters.mux=mux.length>0;return rtcpParameters};SDPUtils.parseMsid=function(mediaSection){var parts;var spec=SDPUtils.matchPrefix(mediaSection,"a=msid:");if(spec.length===1){parts=spec[0].substr(7).split(" ");return{stream:parts[0],track:parts[1]}}var planB=SDPUtils.matchPrefix(mediaSection,"a=ssrc:").map(function(line){return SDPUtils.parseSsrcMedia(line)}).filter(function(parts){return parts.attribute==="msid"});if(planB.length>0){parts=planB[0].value.split(" ");return{stream:parts[0],track:parts[1]}}};SDPUtils.generateSessionId=function(){return Math.random().toString().substr(2,21)};SDPUtils.writeSessionBoilerplate=function(sessId,sessVer){var sessionId;var version=sessVer!==undefined?sessVer:2;if(sessId){sessionId=sessId}else{sessionId=SDPUtils.generateSessionId()}return"v=0\r\n"+"o=thisisadapterortc "+sessionId+" "+version+" IN IP4 127.0.0.1\r\n"+"s=-\r\n"+"t=0 0\r\n"};SDPUtils.writeMediaSection=function(transceiver,caps,type,stream){var sdp=SDPUtils.writeRtpDescription(transceiver.kind,caps);sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters());sdp+=SDPUtils.writeDtlsParameters(transceiver.dtlsTransport.getLocalParameters(),type==="offer"?"actpass":"active");sdp+="a=mid:"+transceiver.mid+"\r\n";if(transceiver.direction){sdp+="a="+transceiver.direction+"\r\n"}else if(transceiver.rtpSender&&transceiver.rtpReceiver){sdp+="a=sendrecv\r\n"}else if(transceiver.rtpSender){sdp+="a=sendonly\r\n"}else if(transceiver.rtpReceiver){sdp+="a=recvonly\r\n"}else{sdp+="a=inactive\r\n"}if(transceiver.rtpSender){var msid="msid:"+stream.id+" "+transceiver.rtpSender.track.id+"\r\n";sdp+="a="+msid;sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].ssrc+" "+msid;if(transceiver.sendEncodingParameters[0].rtx){sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].rtx.ssrc+" "+msid;sdp+="a=ssrc-group:FID "+transceiver.sendEncodingParameters[0].ssrc+" "+transceiver.sendEncodingParameters[0].rtx.ssrc+"\r\n"}}sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].ssrc+" cname:"+SDPUtils.localCName+"\r\n";if(transceiver.rtpSender&&transceiver.sendEncodingParameters[0].rtx){sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].rtx.ssrc+" cname:"+SDPUtils.localCName+"\r\n"}return sdp};SDPUtils.getDirection=function(mediaSection,sessionpart){var lines=SDPUtils.splitLines(mediaSection);for(var i=0;i<lines.length;i++){switch(lines[i]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return lines[i].substr(2);default:}}if(sessionpart){return SDPUtils.getDirection(sessionpart)}return"sendrecv"};SDPUtils.getKind=function(mediaSection){var lines=SDPUtils.splitLines(mediaSection);var mline=lines[0].split(" ");return mline[0].substr(2)};SDPUtils.isRejected=function(mediaSection){return mediaSection.split(" ",2)[1]==="0"};SDPUtils.parseMLine=function(mediaSection){var lines=SDPUtils.splitLines(mediaSection);var parts=lines[0].substr(2).split(" ");return{kind:parts[0],port:parseInt(parts[1],10),protocol:parts[2],fmt:parts.slice(3).join(" ")}};SDPUtils.parseOLine=function(mediaSection){var line=SDPUtils.matchPrefix(mediaSection,"o=")[0];var parts=line.substr(2).split(" ");return{username:parts[0],sessionId:parts[1],sessionVersion:parseInt(parts[2],10),netType:parts[3],addressType:parts[4],address:parts[5]}};if(typeof module==="object"){module.exports=SDPUtils}},{}],3:[function(require,module,exports){(function(global){"use strict";var adapterFactory=require("./adapter_factory.js");module.exports=adapterFactory({window:global.window})}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./adapter_factory.js":4}],4:[function(require,module,exports){"use strict";var utils=require("./utils");module.exports=function(dependencies,opts){var window=dependencies&&dependencies.window;var options={shimChrome:true,shimFirefox:true,shimEdge:true,shimSafari:true};for(var key in opts){if(hasOwnProperty.call(opts,key)){options[key]=opts[key]}}var logging=utils.log;var browserDetails=utils.detectBrowser(window);var chromeShim=require("./chrome/chrome_shim")||null;var edgeShim=require("./edge/edge_shim")||null;var firefoxShim=require("./firefox/firefox_shim")||null;var safariShim=require("./safari/safari_shim")||null;var commonShim=require("./common_shim")||null;var adapter={browserDetails:browserDetails,commonShim:commonShim,extractVersion:utils.extractVersion,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings};switch(browserDetails.browser){case"chrome":if(!chromeShim||!chromeShim.shimPeerConnection||!options.shimChrome){logging("Chrome shim is not included in this adapter release.");return adapter}logging("adapter.js shimming chrome.");adapter.browserShim=chromeShim;commonShim.shimCreateObjectURL(window);chromeShim.shimGetUserMedia(window);chromeShim.shimMediaStream(window);chromeShim.shimSourceObject(window);chromeShim.shimPeerConnection(window);chromeShim.shimOnTrack(window);chromeShim.shimAddTrackRemoveTrack(window);chromeShim.shimGetSendersWithDtmf(window);commonShim.shimRTCIceCandidate(window);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(window);break;case"firefox":if(!firefoxShim||!firefoxShim.shimPeerConnection||!options.shimFirefox){logging("Firefox shim is not included in this adapter release.");return adapter}logging("adapter.js shimming firefox.");adapter.browserShim=firefoxShim;commonShim.shimCreateObjectURL(window);firefoxShim.shimGetUserMedia(window);firefoxShim.shimSourceObject(window);firefoxShim.shimPeerConnection(window);firefoxShim.shimOnTrack(window);firefoxShim.shimRemoveStream(window);commonShim.shimRTCIceCandidate(window);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(window);break;case"edge":if(!edgeShim||!edgeShim.shimPeerConnection||!options.shimEdge){logging("MS edge shim is not included in this adapter release.");return adapter}logging("adapter.js shimming edge.");adapter.browserShim=edgeShim;commonShim.shimCreateObjectURL(window);edgeShim.shimGetUserMedia(window);edgeShim.shimPeerConnection(window);edgeShim.shimReplaceTrack(window);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(window);break;case"safari":if(!safariShim||!options.shimSafari){logging("Safari shim is not included in this adapter release.");return adapter}logging("adapter.js shimming safari.");adapter.browserShim=safariShim;commonShim.shimCreateObjectURL(window);safariShim.shimRTCIceServerUrls(window);safariShim.shimCallbacksAPI(window);safariShim.shimLocalStreamsAPI(window);safariShim.shimRemoteStreamsAPI(window);safariShim.shimTrackEventTransceiver(window);safariShim.shimGetUserMedia(window);safariShim.shimCreateOfferLegacy(window);commonShim.shimRTCIceCandidate(window);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(window);break;default:logging("Unsupported browser!");break}return adapter}},{"./chrome/chrome_shim":5,"./common_shim":7,"./edge/edge_shim":8,"./firefox/firefox_shim":10,"./safari/safari_shim":12,"./utils":13}],5:[function(require,module,exports){"use strict";var utils=require("../utils.js");var logging=utils.log;module.exports={shimGetUserMedia:require("./getusermedia"),shimMediaStream:function(window){window.MediaStream=window.MediaStream||window.webkitMediaStream},shimOnTrack:function(window){if(typeof window==="object"&&window.RTCPeerConnection&&!("ontrack"in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(f){if(this._ontrack){this.removeEventListener("track",this._ontrack)}this.addEventListener("track",this._ontrack=f)}});var origSetRemoteDescription=window.RTCPeerConnection.prototype.setRemoteDescription;window.RTCPeerConnection.prototype.setRemoteDescription=function(){var pc=this;if(!pc._ontrackpoly){pc._ontrackpoly=function(e){e.stream.addEventListener("addtrack",function(te){var receiver;if(window.RTCPeerConnection.prototype.getReceivers){receiver=pc.getReceivers().find(function(r){return r.track&&r.track.id===te.track.id})}else{receiver={track:te.track}}var event=new Event("track");event.track=te.track;event.receiver=receiver;event.transceiver={receiver:receiver};event.streams=[e.stream];pc.dispatchEvent(event)});e.stream.getTracks().forEach(function(track){var receiver;if(window.RTCPeerConnection.prototype.getReceivers){receiver=pc.getReceivers().find(function(r){return r.track&&r.track.id===track.id})}else{receiver={track:track}}var event=new Event("track");event.track=track;event.receiver=receiver;event.transceiver={receiver:receiver};event.streams=[e.stream];pc.dispatchEvent(event)})};pc.addEventListener("addstream",pc._ontrackpoly)}return origSetRemoteDescription.apply(pc,arguments)}}else if(!("RTCRtpTransceiver"in window)){utils.wrapPeerConnectionEvent(window,"track",function(e){if(!e.transceiver){e.transceiver={receiver:e.receiver}}return e})}},shimGetSendersWithDtmf:function(window){if(typeof window==="object"&&window.RTCPeerConnection&&!("getSenders"in window.RTCPeerConnection.prototype)&&"createDTMFSender"in window.RTCPeerConnection.prototype){var shimSenderWithDtmf=function(pc,track){return{track:track,get dtmf(){if(this._dtmf===undefined){if(track.kind==="audio"){this._dtmf=pc.createDTMFSender(track)}else{this._dtmf=null}}return this._dtmf},_pc:pc}};if(!window.RTCPeerConnection.prototype.getSenders){window.RTCPeerConnection.prototype.getSenders=function(){this._senders=this._senders||[];return this._senders.slice()};var origAddTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addTrack=function(track,stream){var pc=this;var sender=origAddTrack.apply(pc,arguments);if(!sender){sender=shimSenderWithDtmf(pc,track);pc._senders.push(sender)}return sender};var origRemoveTrack=window.RTCPeerConnection.prototype.removeTrack;window.RTCPeerConnection.prototype.removeTrack=function(sender){var pc=this;origRemoveTrack.apply(pc,arguments);var idx=pc._senders.indexOf(sender);if(idx!==-1){pc._senders.splice(idx,1)}}}var origAddStream=window.RTCPeerConnection.prototype.addStream;window.RTCPeerConnection.prototype.addStream=function(stream){var pc=this;pc._senders=pc._senders||[];origAddStream.apply(pc,[stream]);stream.getTracks().forEach(function(track){pc._senders.push(shimSenderWithDtmf(pc,track))})};var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;window.RTCPeerConnection.prototype.removeStream=function(stream){var pc=this;pc._senders=pc._senders||[];origRemoveStream.apply(pc,[stream]);stream.getTracks().forEach(function(track){var sender=pc._senders.find(function(s){return s.track===track});if(sender){pc._senders.splice(pc._senders.indexOf(sender),1)}})}}else if(typeof window==="object"&&window.RTCPeerConnection&&"getSenders"in window.RTCPeerConnection.prototype&&"createDTMFSender"in window.RTCPeerConnection.prototype&&window.RTCRtpSender&&!("dtmf"in window.RTCRtpSender.prototype)){var origGetSenders=window.RTCPeerConnection.prototype.getSenders;window.RTCPeerConnection.prototype.getSenders=function(){var pc=this;var senders=origGetSenders.apply(pc,[]);senders.forEach(function(sender){sender._pc=pc});return senders};Object.defineProperty(window.RTCRtpSender.prototype,"dtmf",{get:function(){if(this._dtmf===undefined){if(this.track.kind==="audio"){this._dtmf=this._pc.createDTMFSender(this.track)}else{this._dtmf=null}}return this._dtmf}})}},shimSourceObject:function(window){var URL=window&&window.URL;if(typeof window==="object"){if(window.HTMLMediaElement&&!("srcObject"in window.HTMLMediaElement.prototype)){Object.defineProperty(window.HTMLMediaElement.prototype,"srcObject",{get:function(){return this._srcObject},set:function(stream){var self=this;this._srcObject=stream;if(this.src){URL.revokeObjectURL(this.src)}if(!stream){this.src="";return undefined}this.src=URL.createObjectURL(stream);stream.addEventListener("addtrack",function(){if(self.src){URL.revokeObjectURL(self.src)}self.src=URL.createObjectURL(stream)});stream.addEventListener("removetrack",function(){if(self.src){URL.revokeObjectURL(self.src)}self.src=URL.createObjectURL(stream)})}})}}},shimAddTrackRemoveTrackWithNative:function(window){window.RTCPeerConnection.prototype.getLocalStreams=function(){var pc=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{};return Object.keys(this._shimmedLocalStreams).map(function(streamId){return pc._shimmedLocalStreams[streamId][0]})};var origAddTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addTrack=function(track,stream){if(!stream){
return origAddTrack.apply(this,arguments)}this._shimmedLocalStreams=this._shimmedLocalStreams||{};var sender=origAddTrack.apply(this,arguments);if(!this._shimmedLocalStreams[stream.id]){this._shimmedLocalStreams[stream.id]=[stream,sender]}else if(this._shimmedLocalStreams[stream.id].indexOf(sender)===-1){this._shimmedLocalStreams[stream.id].push(sender)}return sender};var origAddStream=window.RTCPeerConnection.prototype.addStream;window.RTCPeerConnection.prototype.addStream=function(stream){var pc=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{};stream.getTracks().forEach(function(track){var alreadyExists=pc.getSenders().find(function(s){return s.track===track});if(alreadyExists){throw new DOMException("Track already exists.","InvalidAccessError")}});var existingSenders=pc.getSenders();origAddStream.apply(this,arguments);var newSenders=pc.getSenders().filter(function(newSender){return existingSenders.indexOf(newSender)===-1});this._shimmedLocalStreams[stream.id]=[stream].concat(newSenders)};var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;window.RTCPeerConnection.prototype.removeStream=function(stream){this._shimmedLocalStreams=this._shimmedLocalStreams||{};delete this._shimmedLocalStreams[stream.id];return origRemoveStream.apply(this,arguments)};var origRemoveTrack=window.RTCPeerConnection.prototype.removeTrack;window.RTCPeerConnection.prototype.removeTrack=function(sender){var pc=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{};if(sender){Object.keys(this._shimmedLocalStreams).forEach(function(streamId){var idx=pc._shimmedLocalStreams[streamId].indexOf(sender);if(idx!==-1){pc._shimmedLocalStreams[streamId].splice(idx,1)}if(pc._shimmedLocalStreams[streamId].length===1){delete pc._shimmedLocalStreams[streamId]}})}return origRemoveTrack.apply(this,arguments)}},shimAddTrackRemoveTrack:function(window){var browserDetails=utils.detectBrowser(window);if(window.RTCPeerConnection.prototype.addTrack&&browserDetails.version>=65){return this.shimAddTrackRemoveTrackWithNative(window)}var origGetLocalStreams=window.RTCPeerConnection.prototype.getLocalStreams;window.RTCPeerConnection.prototype.getLocalStreams=function(){var pc=this;var nativeStreams=origGetLocalStreams.apply(this);pc._reverseStreams=pc._reverseStreams||{};return nativeStreams.map(function(stream){return pc._reverseStreams[stream.id]})};var origAddStream=window.RTCPeerConnection.prototype.addStream;window.RTCPeerConnection.prototype.addStream=function(stream){var pc=this;pc._streams=pc._streams||{};pc._reverseStreams=pc._reverseStreams||{};stream.getTracks().forEach(function(track){var alreadyExists=pc.getSenders().find(function(s){return s.track===track});if(alreadyExists){throw new DOMException("Track already exists.","InvalidAccessError")}});if(!pc._reverseStreams[stream.id]){var newStream=new window.MediaStream(stream.getTracks());pc._streams[stream.id]=newStream;pc._reverseStreams[newStream.id]=stream;stream=newStream}origAddStream.apply(pc,[stream])};var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;window.RTCPeerConnection.prototype.removeStream=function(stream){var pc=this;pc._streams=pc._streams||{};pc._reverseStreams=pc._reverseStreams||{};origRemoveStream.apply(pc,[pc._streams[stream.id]||stream]);delete pc._reverseStreams[pc._streams[stream.id]?pc._streams[stream.id].id:stream.id];delete pc._streams[stream.id]};window.RTCPeerConnection.prototype.addTrack=function(track,stream){var pc=this;if(pc.signalingState==="closed"){throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError")}var streams=[].slice.call(arguments,1);if(streams.length!==1||!streams[0].getTracks().find(function(t){return t===track})){throw new DOMException("The adapter.js addTrack polyfill only supports a single "+" stream which is associated with the specified track.","NotSupportedError")}var alreadyExists=pc.getSenders().find(function(s){return s.track===track});if(alreadyExists){throw new DOMException("Track already exists.","InvalidAccessError")}pc._streams=pc._streams||{};pc._reverseStreams=pc._reverseStreams||{};var oldStream=pc._streams[stream.id];if(oldStream){oldStream.addTrack(track);Promise.resolve().then(function(){pc.dispatchEvent(new Event("negotiationneeded"))})}else{var newStream=new window.MediaStream([track]);pc._streams[stream.id]=newStream;pc._reverseStreams[newStream.id]=stream;pc.addStream(newStream)}return pc.getSenders().find(function(s){return s.track===track})};function replaceInternalStreamId(pc,description){var sdp=description.sdp;Object.keys(pc._reverseStreams||[]).forEach(function(internalId){var externalStream=pc._reverseStreams[internalId];var internalStream=pc._streams[externalStream.id];sdp=sdp.replace(new RegExp(internalStream.id,"g"),externalStream.id)});return new RTCSessionDescription({type:description.type,sdp:sdp})}function replaceExternalStreamId(pc,description){var sdp=description.sdp;Object.keys(pc._reverseStreams||[]).forEach(function(internalId){var externalStream=pc._reverseStreams[internalId];var internalStream=pc._streams[externalStream.id];sdp=sdp.replace(new RegExp(externalStream.id,"g"),internalStream.id)});return new RTCSessionDescription({type:description.type,sdp:sdp})}["createOffer","createAnswer"].forEach(function(method){var nativeMethod=window.RTCPeerConnection.prototype[method];window.RTCPeerConnection.prototype[method]=function(){var pc=this;var args=arguments;var isLegacyCall=arguments.length&&typeof arguments[0]==="function";if(isLegacyCall){return nativeMethod.apply(pc,[function(description){var desc=replaceInternalStreamId(pc,description);args[0].apply(null,[desc])},function(err){if(args[1]){args[1].apply(null,err)}},arguments[2]])}return nativeMethod.apply(pc,arguments).then(function(description){return replaceInternalStreamId(pc,description)})}});var origSetLocalDescription=window.RTCPeerConnection.prototype.setLocalDescription;window.RTCPeerConnection.prototype.setLocalDescription=function(){var pc=this;if(!arguments.length||!arguments[0].type){return origSetLocalDescription.apply(pc,arguments)}arguments[0]=replaceExternalStreamId(pc,arguments[0]);return origSetLocalDescription.apply(pc,arguments)};var origLocalDescription=Object.getOwnPropertyDescriptor(window.RTCPeerConnection.prototype,"localDescription");Object.defineProperty(window.RTCPeerConnection.prototype,"localDescription",{get:function(){var pc=this;var description=origLocalDescription.get.apply(this);if(description.type===""){return description}return replaceInternalStreamId(pc,description)}});window.RTCPeerConnection.prototype.removeTrack=function(sender){var pc=this;if(pc.signalingState==="closed"){throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError")}if(!sender._pc){throw new DOMException("Argument 1 of RTCPeerConnection.removeTrack "+"does not implement interface RTCRtpSender.","TypeError")}var isLocal=sender._pc===pc;if(!isLocal){throw new DOMException("Sender was not created by this connection.","InvalidAccessError")}pc._streams=pc._streams||{};var stream;Object.keys(pc._streams).forEach(function(streamid){var hasTrack=pc._streams[streamid].getTracks().find(function(track){return sender.track===track});if(hasTrack){stream=pc._streams[streamid]}});if(stream){if(stream.getTracks().length===1){pc.removeStream(pc._reverseStreams[stream.id])}else{stream.removeTrack(sender.track)}pc.dispatchEvent(new Event("negotiationneeded"))}}},shimPeerConnection:function(window){var browserDetails=utils.detectBrowser(window);if(!window.RTCPeerConnection&&window.webkitRTCPeerConnection){window.RTCPeerConnection=function(pcConfig,pcConstraints){logging("PeerConnection");if(pcConfig&&pcConfig.iceTransportPolicy){pcConfig.iceTransports=pcConfig.iceTransportPolicy}return new window.webkitRTCPeerConnection(pcConfig,pcConstraints)};window.RTCPeerConnection.prototype=window.webkitRTCPeerConnection.prototype;if(window.webkitRTCPeerConnection.generateCertificate){Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return window.webkitRTCPeerConnection.generateCertificate}})}}else{var OrigPeerConnection=window.RTCPeerConnection;window.RTCPeerConnection=function(pcConfig,pcConstraints){if(pcConfig&&pcConfig.iceServers){var newIceServers=[];for(var i=0;i<pcConfig.iceServers.length;i++){var server=pcConfig.iceServers[i];if(!server.hasOwnProperty("urls")&&server.hasOwnProperty("url")){utils.deprecated("RTCIceServer.url","RTCIceServer.urls");server=JSON.parse(JSON.stringify(server));server.urls=server.url;newIceServers.push(server)}else{newIceServers.push(pcConfig.iceServers[i])}}pcConfig.iceServers=newIceServers}return new OrigPeerConnection(pcConfig,pcConstraints)};window.RTCPeerConnection.prototype=OrigPeerConnection.prototype;Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return OrigPeerConnection.generateCertificate}})}var origGetStats=window.RTCPeerConnection.prototype.getStats;window.RTCPeerConnection.prototype.getStats=function(selector,successCallback,errorCallback){var pc=this;var args=arguments;if(arguments.length>0&&typeof selector==="function"){return origGetStats.apply(this,arguments)}if(origGetStats.length===0&&(arguments.length===0||typeof arguments[0]!=="function")){return origGetStats.apply(this,[])}var fixChromeStats_=function(response){var standardReport={};var reports=response.result();reports.forEach(function(report){var standardStats={id:report.id,timestamp:report.timestamp,type:{localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[report.type]||report.type};report.names().forEach(function(name){standardStats[name]=report.stat(name)});standardReport[standardStats.id]=standardStats});return standardReport};var makeMapStats=function(stats){return new Map(Object.keys(stats).map(function(key){return[key,stats[key]]}))};if(arguments.length>=2){var successCallbackWrapper_=function(response){args[1](makeMapStats(fixChromeStats_(response)))};return origGetStats.apply(this,[successCallbackWrapper_,arguments[0]])}return new Promise(function(resolve,reject){origGetStats.apply(pc,[function(response){resolve(makeMapStats(fixChromeStats_(response)))},reject])}).then(successCallback,errorCallback)};if(browserDetails.version<51){["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(method){var nativeMethod=window.RTCPeerConnection.prototype[method];window.RTCPeerConnection.prototype[method]=function(){var args=arguments;var pc=this;var promise=new Promise(function(resolve,reject){nativeMethod.apply(pc,[args[0],resolve,reject])});if(args.length<2){return promise}return promise.then(function(){args[1].apply(null,[])},function(err){if(args.length>=3){args[2].apply(null,[err])}})}})}if(browserDetails.version<52){["createOffer","createAnswer"].forEach(function(method){var nativeMethod=window.RTCPeerConnection.prototype[method];window.RTCPeerConnection.prototype[method]=function(){var pc=this;if(arguments.length<1||arguments.length===1&&typeof arguments[0]==="object"){var opts=arguments.length===1?arguments[0]:undefined;return new Promise(function(resolve,reject){nativeMethod.apply(pc,[resolve,reject,opts])})}return nativeMethod.apply(this,arguments)}})}["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(method){var nativeMethod=window.RTCPeerConnection.prototype[method];window.RTCPeerConnection.prototype[method]=function(){arguments[0]=new(method==="addIceCandidate"?window.RTCIceCandidate:window.RTCSessionDescription)(arguments[0]);return nativeMethod.apply(this,arguments)}});var nativeAddIceCandidate=window.RTCPeerConnection.prototype.addIceCandidate;window.RTCPeerConnection.prototype.addIceCandidate=function(){if(!arguments[0]){if(arguments[1]){arguments[1].apply(null)}return Promise.resolve()}return nativeAddIceCandidate.apply(this,arguments)}}}},{"../utils.js":13,"./getusermedia":6}],6:[function(require,module,exports){"use strict";var utils=require("../utils.js");var logging=utils.log;module.exports=function(window){var browserDetails=utils.detectBrowser(window);var navigator=window&&window.navigator;var constraintsToChrome_=function(c){if(typeof c!=="object"||c.mandatory||c.optional){return c}var cc={};Object.keys(c).forEach(function(key){if(key==="require"||key==="advanced"||key==="mediaSource"){return}var r=typeof c[key]==="object"?c[key]:{ideal:c[key]};if(r.exact!==undefined&&typeof r.exact==="number"){r.min=r.max=r.exact}var oldname_=function(prefix,name){if(prefix){return prefix+name.charAt(0).toUpperCase()+name.slice(1)}return name==="deviceId"?"sourceId":name};if(r.ideal!==undefined){cc.optional=cc.optional||[];var oc={};if(typeof r.ideal==="number"){oc[oldname_("min",key)]=r.ideal;cc.optional.push(oc);oc={};oc[oldname_("max",key)]=r.ideal;cc.optional.push(oc)}else{oc[oldname_("",key)]=r.ideal;cc.optional.push(oc)}}if(r.exact!==undefined&&typeof r.exact!=="number"){cc.mandatory=cc.mandatory||{};cc.mandatory[oldname_("",key)]=r.exact}else{["min","max"].forEach(function(mix){if(r[mix]!==undefined){cc.mandatory=cc.mandatory||{};cc.mandatory[oldname_(mix,key)]=r[mix]}})}});if(c.advanced){cc.optional=(cc.optional||[]).concat(c.advanced)}return cc};var shimConstraints_=function(constraints,func){if(browserDetails.version>=61){return func(constraints)}constraints=JSON.parse(JSON.stringify(constraints));if(constraints&&typeof constraints.audio==="object"){var remap=function(obj,a,b){if(a in obj&&!(b in obj)){obj[b]=obj[a];delete obj[a]}};constraints=JSON.parse(JSON.stringify(constraints));remap(constraints.audio,"autoGainControl","googAutoGainControl");remap(constraints.audio,"noiseSuppression","googNoiseSuppression");constraints.audio=constraintsToChrome_(constraints.audio)}if(constraints&&typeof constraints.video==="object"){var face=constraints.video.facingMode;face=face&&(typeof face==="object"?face:{ideal:face});var getSupportedFacingModeLies=browserDetails.version<66;if(face&&(face.exact==="user"||face.exact==="environment"||face.ideal==="user"||face.ideal==="environment")&&!(navigator.mediaDevices.getSupportedConstraints&&navigator.mediaDevices.getSupportedConstraints().facingMode&&!getSupportedFacingModeLies)){delete constraints.video.facingMode;var matches;if(face.exact==="environment"||face.ideal==="environment"){matches=["back","rear"]}else if(face.exact==="user"||face.ideal==="user"){matches=["front"]}if(matches){return navigator.mediaDevices.enumerateDevices().then(function(devices){devices=devices.filter(function(d){return d.kind==="videoinput"});var dev=devices.find(function(d){return matches.some(function(match){return d.label.toLowerCase().indexOf(match)!==-1})});if(!dev&&devices.length&&matches.indexOf("back")!==-1){dev=devices[devices.length-1]}if(dev){constraints.video.deviceId=face.exact?{exact:dev.deviceId}:{ideal:dev.deviceId}}constraints.video=constraintsToChrome_(constraints.video);logging("chrome: "+JSON.stringify(constraints));return func(constraints)})}}constraints.video=constraintsToChrome_(constraints.video)}logging("chrome: "+JSON.stringify(constraints));return func(constraints)};var shimError_=function(e){return{name:{PermissionDeniedError:"NotAllowedError",PermissionDismissedError:"NotAllowedError",InvalidStateError:"NotAllowedError",DevicesNotFoundError:"NotFoundError",ConstraintNotSatisfiedError:"OverconstrainedError",TrackStartError:"NotReadableError",MediaDeviceFailedDueToShutdown:"NotAllowedError",MediaDeviceKillSwitchOn:"NotAllowedError",TabCaptureError:"AbortError",ScreenCaptureError:"AbortError",DeviceCaptureError:"AbortError"}[e.name]||e.name,message:e.message,constraint:e.constraintName,toString:function(){return this.name+(this.message&&": ")+this.message}}};var getUserMedia_=function(constraints,onSuccess,onError){shimConstraints_(constraints,function(c){navigator.webkitGetUserMedia(c,onSuccess,function(e){if(onError){onError(shimError_(e))}})})};navigator.getUserMedia=getUserMedia_;var getUserMediaPromise_=function(constraints){return new Promise(function(resolve,reject){navigator.getUserMedia(constraints,resolve,reject)})};if(!navigator.mediaDevices){navigator.mediaDevices={getUserMedia:getUserMediaPromise_,enumerateDevices:function(){return new Promise(function(resolve){var kinds={audio:"audioinput",video:"videoinput"};return window.MediaStreamTrack.getSources(function(devices){resolve(devices.map(function(device){return{label:device.label,kind:kinds[device.kind],deviceId:device.id,groupId:""}}))})})},getSupportedConstraints:function(){return{deviceId:true,echoCancellation:true,facingMode:true,frameRate:true,height:true,width:true}}}}if(!navigator.mediaDevices.getUserMedia){navigator.mediaDevices.getUserMedia=function(constraints){return getUserMediaPromise_(constraints)}}else{var origGetUserMedia=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(cs){return shimConstraints_(cs,function(c){return origGetUserMedia(c).then(function(stream){if(c.audio&&!stream.getAudioTracks().length||c.video&&!stream.getVideoTracks().length){stream.getTracks().forEach(function(track){track.stop()});throw new DOMException("","NotFoundError")}return stream},function(e){return Promise.reject(shimError_(e))})})}}if(typeof navigator.mediaDevices.addEventListener==="undefined"){navigator.mediaDevices.addEventListener=function(){logging("Dummy mediaDevices.addEventListener called.")}}if(typeof navigator.mediaDevices.removeEventListener==="undefined"){navigator.mediaDevices.removeEventListener=function(){logging("Dummy mediaDevices.removeEventListener called.")}}}},{"../utils.js":13}],7:[function(require,module,exports){"use strict";var SDPUtils=require("sdp");var utils=require("./utils");module.exports={shimRTCIceCandidate:function(window){if(!window.RTCIceCandidate||window.RTCIceCandidate&&"foundation"in window.RTCIceCandidate.prototype){return}var NativeRTCIceCandidate=window.RTCIceCandidate;window.RTCIceCandidate=function(args){if(typeof args==="object"&&args.candidate&&args.candidate.indexOf("a=")===0){args=JSON.parse(JSON.stringify(args));args.candidate=args.candidate.substr(2)}if(args.candidate&&args.candidate.length){var nativeCandidate=new NativeRTCIceCandidate(args);var parsedCandidate=SDPUtils.parseCandidate(args.candidate);var augmentedCandidate=Object.assign(nativeCandidate,parsedCandidate);augmentedCandidate.toJSON=function(){return{candidate:augmentedCandidate.candidate,sdpMid:augmentedCandidate.sdpMid,sdpMLineIndex:augmentedCandidate.sdpMLineIndex,usernameFragment:augmentedCandidate.usernameFragment}};return augmentedCandidate}return new NativeRTCIceCandidate(args)};window.RTCIceCandidate.prototype=NativeRTCIceCandidate.prototype;utils.wrapPeerConnectionEvent(window,"icecandidate",function(e){if(e.candidate){Object.defineProperty(e,"candidate",{value:new window.RTCIceCandidate(e.candidate),writable:"false"})}return e})},shimCreateObjectURL:function(window){var URL=window&&window.URL;if(!(typeof window==="object"&&window.HTMLMediaElement&&"srcObject"in window.HTMLMediaElement.prototype&&URL.createObjectURL&&URL.revokeObjectURL)){return undefined}var nativeCreateObjectURL=URL.createObjectURL.bind(URL);var nativeRevokeObjectURL=URL.revokeObjectURL.bind(URL);var streams=new Map,newId=0;URL.createObjectURL=function(stream){if("getTracks"in stream){var url="polyblob:"+ ++newId;streams.set(url,stream);utils.deprecated("URL.createObjectURL(stream)","elem.srcObject = stream");return url}return nativeCreateObjectURL(stream)};URL.revokeObjectURL=function(url){nativeRevokeObjectURL(url);streams.delete(url)};var dsc=Object.getOwnPropertyDescriptor(window.HTMLMediaElement.prototype,"src");Object.defineProperty(window.HTMLMediaElement.prototype,"src",{get:function(){return dsc.get.apply(this)},set:function(url){this.srcObject=streams.get(url)||null;return dsc.set.apply(this,[url])}});var nativeSetAttribute=window.HTMLMediaElement.prototype.setAttribute;window.HTMLMediaElement.prototype.setAttribute=function(){if(arguments.length===2&&(""+arguments[0]).toLowerCase()==="src"){this.srcObject=streams.get(arguments[1])||null}return nativeSetAttribute.apply(this,arguments)}},shimMaxMessageSize:function(window){if(window.RTCSctpTransport||!window.RTCPeerConnection){return}var browserDetails=utils.detectBrowser(window);if(!("sctp"in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,"sctp",{get:function(){return typeof this._sctp==="undefined"?null:this._sctp}})}var sctpInDescription=function(description){var sections=SDPUtils.splitSections(description.sdp);sections.shift();return sections.some(function(mediaSection){var mLine=SDPUtils.parseMLine(mediaSection);return mLine&&mLine.kind==="application"&&mLine.protocol.indexOf("SCTP")!==-1})};var getRemoteFirefoxVersion=function(description){var match=description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(match===null||match.length<2){return-1}var version=parseInt(match[1],10);return version!==version?-1:version};var getCanSendMaxMessageSize=function(remoteIsFirefox){var canSendMaxMessageSize=65536;if(browserDetails.browser==="firefox"){if(browserDetails.version<57){if(remoteIsFirefox===-1){canSendMaxMessageSize=16384}else{canSendMaxMessageSize=2147483637}}else{canSendMaxMessageSize=browserDetails.version===57?65535:65536}}return canSendMaxMessageSize};var getMaxMessageSize=function(description,remoteIsFirefox){var maxMessageSize=65536;if(browserDetails.browser==="firefox"&&browserDetails.version===57){maxMessageSize=65535}var match=SDPUtils.matchPrefix(description.sdp,"a=max-message-size:");if(match.length>0){maxMessageSize=parseInt(match[0].substr(19),10)}else if(browserDetails.browser==="firefox"&&remoteIsFirefox!==-1){maxMessageSize=2147483637}return maxMessageSize};var origSetRemoteDescription=window.RTCPeerConnection.prototype.setRemoteDescription;window.RTCPeerConnection.prototype.setRemoteDescription=function(){var pc=this;pc._sctp=null;if(sctpInDescription(arguments[0])){var isFirefox=getRemoteFirefoxVersion(arguments[0]);var canSendMMS=getCanSendMaxMessageSize(isFirefox);var remoteMMS=getMaxMessageSize(arguments[0],isFirefox);var maxMessageSize;if(canSendMMS===0&&remoteMMS===0){maxMessageSize=Number.POSITIVE_INFINITY}else if(canSendMMS===0||remoteMMS===0){maxMessageSize=Math.max(canSendMMS,remoteMMS)}else{maxMessageSize=Math.min(canSendMMS,remoteMMS)}var sctp={};Object.defineProperty(sctp,"maxMessageSize",{get:function(){return maxMessageSize}});pc._sctp=sctp}return origSetRemoteDescription.apply(pc,arguments)}},shimSendThrowTypeError:function(window){if(!(window.RTCPeerConnection&&"createDataChannel"in window.RTCPeerConnection.prototype)){return}var origCreateDataChannel=window.RTCPeerConnection.prototype.createDataChannel;window.RTCPeerConnection.prototype.createDataChannel=function(){var pc=this;var dataChannel=origCreateDataChannel.apply(pc,arguments);var origDataChannelSend=dataChannel.send;dataChannel.send=function(){var dc=this;var data=arguments[0];var length=data.length||data.size||data.byteLength;if(length>pc.sctp.maxMessageSize){throw new DOMException("Message too large (can send a maximum of "+pc.sctp.maxMessageSize+" bytes)","TypeError")}return origDataChannelSend.apply(dc,arguments)};return dataChannel}}}},{"./utils":13,sdp:2}],8:[function(require,module,exports){"use strict";var utils=require("../utils");var shimRTCPeerConnection=require("rtcpeerconnection-shim");module.exports={shimGetUserMedia:require("./getusermedia"),shimPeerConnection:function(window){var browserDetails=utils.detectBrowser(window);if(window.RTCIceGatherer){if(!window.RTCIceCandidate){window.RTCIceCandidate=function(args){return args}}if(!window.RTCSessionDescription){window.RTCSessionDescription=function(args){return args}}if(browserDetails.version<15025){var origMSTEnabled=Object.getOwnPropertyDescriptor(window.MediaStreamTrack.prototype,"enabled");Object.defineProperty(window.MediaStreamTrack.prototype,"enabled",{set:function(value){origMSTEnabled.set.call(this,value);var ev=new Event("enabled");ev.enabled=value;this.dispatchEvent(ev)}})}}if(window.RTCRtpSender&&!("dtmf"in window.RTCRtpSender.prototype)){Object.defineProperty(window.RTCRtpSender.prototype,"dtmf",{get:function(){if(this._dtmf===undefined){if(this.track.kind==="audio"){this._dtmf=new window.RTCDtmfSender(this)}else if(this.track.kind==="video"){this._dtmf=null}}return this._dtmf}})}if(window.RTCDtmfSender&&!window.RTCDTMFSender){window.RTCDTMFSender=window.RTCDtmfSender}window.RTCPeerConnection=shimRTCPeerConnection(window,browserDetails.version)},shimReplaceTrack:function(window){if(window.RTCRtpSender&&!("replaceTrack"in window.RTCRtpSender.prototype)){window.RTCRtpSender.prototype.replaceTrack=window.RTCRtpSender.prototype.setTrack}}}},{"../utils":13,"./getusermedia":9,"rtcpeerconnection-shim":1}],9:[function(require,module,exports){"use strict";module.exports=function(window){var navigator=window&&window.navigator;var shimError_=function(e){return{name:{PermissionDeniedError:"NotAllowedError"}[e.name]||e.name,message:e.message,constraint:e.constraint,toString:function(){return this.name}}};var origGetUserMedia=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(c){return origGetUserMedia(c).catch(function(e){return Promise.reject(shimError_(e))})}}},{}],10:[function(require,module,exports){"use strict";var utils=require("../utils");module.exports={shimGetUserMedia:require("./getusermedia"),shimOnTrack:function(window){if(typeof window==="object"&&window.RTCPeerConnection&&!("ontrack"in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(f){if(this._ontrack){this.removeEventListener("track",this._ontrack);this.removeEventListener("addstream",this._ontrackpoly)}this.addEventListener("track",this._ontrack=f);this.addEventListener("addstream",this._ontrackpoly=function(e){e.stream.getTracks().forEach(function(track){var event=new Event("track");event.track=track;event.receiver={track:track};event.transceiver={receiver:event.receiver};event.streams=[e.stream];this.dispatchEvent(event)}.bind(this))}.bind(this))}})}if(typeof window==="object"&&window.RTCTrackEvent&&"receiver"in window.RTCTrackEvent.prototype&&!("transceiver"in window.RTCTrackEvent.prototype)){Object.defineProperty(window.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})}},shimSourceObject:function(window){if(typeof window==="object"){if(window.HTMLMediaElement&&!("srcObject"in window.HTMLMediaElement.prototype)){Object.defineProperty(window.HTMLMediaElement.prototype,"srcObject",{get:function(){return this.mozSrcObject},set:function(stream){this.mozSrcObject=stream}})}}},shimPeerConnection:function(window){var browserDetails=utils.detectBrowser(window);if(typeof window!=="object"||!(window.RTCPeerConnection||window.mozRTCPeerConnection)){return}if(!window.RTCPeerConnection){window.RTCPeerConnection=function(pcConfig,pcConstraints){if(browserDetails.version<38){if(pcConfig&&pcConfig.iceServers){var newIceServers=[];for(var i=0;i<pcConfig.iceServers.length;i++){var server=pcConfig.iceServers[i];if(server.hasOwnProperty("urls")){for(var j=0;j<server.urls.length;j++){var newServer={url:server.urls[j]};if(server.urls[j].indexOf("turn")===0){newServer.username=server.username;newServer.credential=server.credential}newIceServers.push(newServer)}}else{newIceServers.push(pcConfig.iceServers[i])}}pcConfig.iceServers=newIceServers}}return new window.mozRTCPeerConnection(pcConfig,pcConstraints)};window.RTCPeerConnection.prototype=window.mozRTCPeerConnection.prototype;if(window.mozRTCPeerConnection.generateCertificate){Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return window.mozRTCPeerConnection.generateCertificate}})}window.RTCSessionDescription=window.mozRTCSessionDescription;window.RTCIceCandidate=window.mozRTCIceCandidate}["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(method){var nativeMethod=window.RTCPeerConnection.prototype[method];window.RTCPeerConnection.prototype[method]=function(){arguments[0]=new(method==="addIceCandidate"?window.RTCIceCandidate:window.RTCSessionDescription)(arguments[0]);return nativeMethod.apply(this,arguments)}});var nativeAddIceCandidate=window.RTCPeerConnection.prototype.addIceCandidate;window.RTCPeerConnection.prototype.addIceCandidate=function(){if(!arguments[0]){if(arguments[1]){arguments[1].apply(null)}return Promise.resolve()}return nativeAddIceCandidate.apply(this,arguments)};var makeMapStats=function(stats){var map=new Map;Object.keys(stats).forEach(function(key){map.set(key,stats[key]);map[key]=stats[key]});return map};var modernStatsTypes={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"};var nativeGetStats=window.RTCPeerConnection.prototype.getStats;window.RTCPeerConnection.prototype.getStats=function(selector,onSucc,onErr){return nativeGetStats.apply(this,[selector||null]).then(function(stats){if(browserDetails.version<48){stats=makeMapStats(stats)}if(browserDetails.version<53&&!onSucc){try{stats.forEach(function(stat){stat.type=modernStatsTypes[stat.type]||stat.type})}catch(e){if(e.name!=="TypeError"){throw e}stats.forEach(function(stat,i){stats.set(i,Object.assign({},stat,{type:modernStatsTypes[stat.type]||stat.type}))})}}return stats}).then(onSucc,onErr)}},shimRemoveStream:function(window){if(!window.RTCPeerConnection||"removeStream"in window.RTCPeerConnection.prototype){return}window.RTCPeerConnection.prototype.removeStream=function(stream){var pc=this;utils.deprecated("removeStream","removeTrack");this.getSenders().forEach(function(sender){if(sender.track&&stream.getTracks().indexOf(sender.track)!==-1){pc.removeTrack(sender)}})}}}},{"../utils":13,"./getusermedia":11}],11:[function(require,module,exports){"use strict";var utils=require("../utils");var logging=utils.log;module.exports=function(window){var browserDetails=utils.detectBrowser(window);var navigator=window&&window.navigator;var MediaStreamTrack=window&&window.MediaStreamTrack;var shimError_=function(e){return{name:{InternalError:"NotReadableError",NotSupportedError:"TypeError",PermissionDeniedError:"NotAllowedError",SecurityError:"NotAllowedError"}[e.name]||e.name,message:{"The operation is insecure.":"The request is not allowed by the "+"user agent or the platform in the current context."}[e.message]||e.message,constraint:e.constraint,toString:function(){return this.name+(this.message&&": ")+this.message}}};var getUserMedia_=function(constraints,onSuccess,onError){var constraintsToFF37_=function(c){if(typeof c!=="object"||c.require){return c}var require=[];Object.keys(c).forEach(function(key){if(key==="require"||key==="advanced"||key==="mediaSource"){return}var r=c[key]=typeof c[key]==="object"?c[key]:{ideal:c[key]};if(r.min!==undefined||r.max!==undefined||r.exact!==undefined){require.push(key)}if(r.exact!==undefined){if(typeof r.exact==="number"){r.min=r.max=r.exact}else{c[key]=r.exact}delete r.exact}if(r.ideal!==undefined){c.advanced=c.advanced||[];var oc={};if(typeof r.ideal==="number"){oc[key]={min:r.ideal,max:r.ideal}}else{oc[key]=r.ideal}c.advanced.push(oc);delete r.ideal;if(!Object.keys(r).length){delete c[key]}}});if(require.length){c.require=require}return c};constraints=JSON.parse(JSON.stringify(constraints));if(browserDetails.version<38){logging("spec: "+JSON.stringify(constraints));if(constraints.audio){constraints.audio=constraintsToFF37_(constraints.audio)}if(constraints.video){constraints.video=constraintsToFF37_(constraints.video)}logging("ff37: "+JSON.stringify(constraints))}return navigator.mozGetUserMedia(constraints,onSuccess,function(e){onError(shimError_(e))})};var getUserMediaPromise_=function(constraints){return new Promise(function(resolve,reject){
getUserMedia_(constraints,resolve,reject)})};if(!navigator.mediaDevices){navigator.mediaDevices={getUserMedia:getUserMediaPromise_,addEventListener:function(){},removeEventListener:function(){}}}navigator.mediaDevices.enumerateDevices=navigator.mediaDevices.enumerateDevices||function(){return new Promise(function(resolve){var infos=[{kind:"audioinput",deviceId:"default",label:"",groupId:""},{kind:"videoinput",deviceId:"default",label:"",groupId:""}];resolve(infos)})};if(browserDetails.version<41){var orgEnumerateDevices=navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);navigator.mediaDevices.enumerateDevices=function(){return orgEnumerateDevices().then(undefined,function(e){if(e.name==="NotFoundError"){return[]}throw e})}}if(browserDetails.version<49){var origGetUserMedia=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(c){return origGetUserMedia(c).then(function(stream){if(c.audio&&!stream.getAudioTracks().length||c.video&&!stream.getVideoTracks().length){stream.getTracks().forEach(function(track){track.stop()});throw new DOMException("The object can not be found here.","NotFoundError")}return stream},function(e){return Promise.reject(shimError_(e))})}}if(!(browserDetails.version>55&&"autoGainControl"in navigator.mediaDevices.getSupportedConstraints())){var remap=function(obj,a,b){if(a in obj&&!(b in obj)){obj[b]=obj[a];delete obj[a]}};var nativeGetUserMedia=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(c){if(typeof c==="object"&&typeof c.audio==="object"){c=JSON.parse(JSON.stringify(c));remap(c.audio,"autoGainControl","mozAutoGainControl");remap(c.audio,"noiseSuppression","mozNoiseSuppression")}return nativeGetUserMedia(c)};if(MediaStreamTrack&&MediaStreamTrack.prototype.getSettings){var nativeGetSettings=MediaStreamTrack.prototype.getSettings;MediaStreamTrack.prototype.getSettings=function(){var obj=nativeGetSettings.apply(this,arguments);remap(obj,"mozAutoGainControl","autoGainControl");remap(obj,"mozNoiseSuppression","noiseSuppression");return obj}}if(MediaStreamTrack&&MediaStreamTrack.prototype.applyConstraints){var nativeApplyConstraints=MediaStreamTrack.prototype.applyConstraints;MediaStreamTrack.prototype.applyConstraints=function(c){if(this.kind==="audio"&&typeof c==="object"){c=JSON.parse(JSON.stringify(c));remap(c,"autoGainControl","mozAutoGainControl");remap(c,"noiseSuppression","mozNoiseSuppression")}return nativeApplyConstraints.apply(this,[c])}}}navigator.getUserMedia=function(constraints,onSuccess,onError){if(browserDetails.version<44){return getUserMedia_(constraints,onSuccess,onError)}utils.deprecated("navigator.getUserMedia","navigator.mediaDevices.getUserMedia");navigator.mediaDevices.getUserMedia(constraints).then(onSuccess,onError)}}},{"../utils":13}],12:[function(require,module,exports){"use strict";var utils=require("../utils");module.exports={shimLocalStreamsAPI:function(window){if(typeof window!=="object"||!window.RTCPeerConnection){return}if(!("getLocalStreams"in window.RTCPeerConnection.prototype)){window.RTCPeerConnection.prototype.getLocalStreams=function(){if(!this._localStreams){this._localStreams=[]}return this._localStreams}}if(!("getStreamById"in window.RTCPeerConnection.prototype)){window.RTCPeerConnection.prototype.getStreamById=function(id){var result=null;if(this._localStreams){this._localStreams.forEach(function(stream){if(stream.id===id){result=stream}})}if(this._remoteStreams){this._remoteStreams.forEach(function(stream){if(stream.id===id){result=stream}})}return result}}if(!("addStream"in window.RTCPeerConnection.prototype)){var _addTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addStream=function(stream){if(!this._localStreams){this._localStreams=[]}if(this._localStreams.indexOf(stream)===-1){this._localStreams.push(stream)}var pc=this;stream.getTracks().forEach(function(track){_addTrack.call(pc,track,stream)})};window.RTCPeerConnection.prototype.addTrack=function(track,stream){if(stream){if(!this._localStreams){this._localStreams=[stream]}else if(this._localStreams.indexOf(stream)===-1){this._localStreams.push(stream)}}return _addTrack.call(this,track,stream)}}if(!("removeStream"in window.RTCPeerConnection.prototype)){window.RTCPeerConnection.prototype.removeStream=function(stream){if(!this._localStreams){this._localStreams=[]}var index=this._localStreams.indexOf(stream);if(index===-1){return}this._localStreams.splice(index,1);var pc=this;var tracks=stream.getTracks();this.getSenders().forEach(function(sender){if(tracks.indexOf(sender.track)!==-1){pc.removeTrack(sender)}})}}},shimRemoteStreamsAPI:function(window){if(typeof window!=="object"||!window.RTCPeerConnection){return}if(!("getRemoteStreams"in window.RTCPeerConnection.prototype)){window.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams?this._remoteStreams:[]}}if(!("onaddstream"in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,"onaddstream",{get:function(){return this._onaddstream},set:function(f){var pc=this;if(this._onaddstream){this.removeEventListener("addstream",this._onaddstream);this.removeEventListener("track",this._onaddstreampoly)}this.addEventListener("addstream",this._onaddstream=f);this.addEventListener("track",this._onaddstreampoly=function(e){e.streams.forEach(function(stream){if(!pc._remoteStreams){pc._remoteStreams=[]}if(pc._remoteStreams.indexOf(stream)>=0){return}pc._remoteStreams.push(stream);var event=new Event("addstream");event.stream=stream;pc.dispatchEvent(event)})})}})}},shimCallbacksAPI:function(window){if(typeof window!=="object"||!window.RTCPeerConnection){return}var prototype=window.RTCPeerConnection.prototype;var createOffer=prototype.createOffer;var createAnswer=prototype.createAnswer;var setLocalDescription=prototype.setLocalDescription;var setRemoteDescription=prototype.setRemoteDescription;var addIceCandidate=prototype.addIceCandidate;prototype.createOffer=function(successCallback,failureCallback){var options=arguments.length>=2?arguments[2]:arguments[0];var promise=createOffer.apply(this,[options]);if(!failureCallback){return promise}promise.then(successCallback,failureCallback);return Promise.resolve()};prototype.createAnswer=function(successCallback,failureCallback){var options=arguments.length>=2?arguments[2]:arguments[0];var promise=createAnswer.apply(this,[options]);if(!failureCallback){return promise}promise.then(successCallback,failureCallback);return Promise.resolve()};var withCallback=function(description,successCallback,failureCallback){var promise=setLocalDescription.apply(this,[description]);if(!failureCallback){return promise}promise.then(successCallback,failureCallback);return Promise.resolve()};prototype.setLocalDescription=withCallback;withCallback=function(description,successCallback,failureCallback){var promise=setRemoteDescription.apply(this,[description]);if(!failureCallback){return promise}promise.then(successCallback,failureCallback);return Promise.resolve()};prototype.setRemoteDescription=withCallback;withCallback=function(candidate,successCallback,failureCallback){var promise=addIceCandidate.apply(this,[candidate]);if(!failureCallback){return promise}promise.then(successCallback,failureCallback);return Promise.resolve()};prototype.addIceCandidate=withCallback},shimGetUserMedia:function(window){var navigator=window&&window.navigator;if(!navigator.getUserMedia){if(navigator.webkitGetUserMedia){navigator.getUserMedia=navigator.webkitGetUserMedia.bind(navigator)}else if(navigator.mediaDevices&&navigator.mediaDevices.getUserMedia){navigator.getUserMedia=function(constraints,cb,errcb){navigator.mediaDevices.getUserMedia(constraints).then(cb,errcb)}.bind(navigator)}}},shimRTCIceServerUrls:function(window){var OrigPeerConnection=window.RTCPeerConnection;window.RTCPeerConnection=function(pcConfig,pcConstraints){if(pcConfig&&pcConfig.iceServers){var newIceServers=[];for(var i=0;i<pcConfig.iceServers.length;i++){var server=pcConfig.iceServers[i];if(!server.hasOwnProperty("urls")&&server.hasOwnProperty("url")){utils.deprecated("RTCIceServer.url","RTCIceServer.urls");server=JSON.parse(JSON.stringify(server));server.urls=server.url;delete server.url;newIceServers.push(server)}else{newIceServers.push(pcConfig.iceServers[i])}}pcConfig.iceServers=newIceServers}return new OrigPeerConnection(pcConfig,pcConstraints)};window.RTCPeerConnection.prototype=OrigPeerConnection.prototype;if("generateCertificate"in window.RTCPeerConnection){Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return OrigPeerConnection.generateCertificate}})}},shimTrackEventTransceiver:function(window){if(typeof window==="object"&&window.RTCPeerConnection&&"receiver"in window.RTCTrackEvent.prototype&&!window.RTCTransceiver){Object.defineProperty(window.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})}},shimCreateOfferLegacy:function(window){var origCreateOffer=window.RTCPeerConnection.prototype.createOffer;window.RTCPeerConnection.prototype.createOffer=function(offerOptions){var pc=this;if(offerOptions){if(typeof offerOptions.offerToReceiveAudio!=="undefined"){offerOptions.offerToReceiveAudio=!!offerOptions.offerToReceiveAudio}var audioTransceiver=pc.getTransceivers().find(function(transceiver){return transceiver.sender.track&&transceiver.sender.track.kind==="audio"});if(offerOptions.offerToReceiveAudio===false&&audioTransceiver){if(audioTransceiver.direction==="sendrecv"){if(audioTransceiver.setDirection){audioTransceiver.setDirection("sendonly")}else{audioTransceiver.direction="sendonly"}}else if(audioTransceiver.direction==="recvonly"){if(audioTransceiver.setDirection){audioTransceiver.setDirection("inactive")}else{audioTransceiver.direction="inactive"}}}else if(offerOptions.offerToReceiveAudio===true&&!audioTransceiver){pc.addTransceiver("audio")}if(typeof offerOptions.offerToReceiveAudio!=="undefined"){offerOptions.offerToReceiveVideo=!!offerOptions.offerToReceiveVideo}var videoTransceiver=pc.getTransceivers().find(function(transceiver){return transceiver.sender.track&&transceiver.sender.track.kind==="video"});if(offerOptions.offerToReceiveVideo===false&&videoTransceiver){if(videoTransceiver.direction==="sendrecv"){videoTransceiver.setDirection("sendonly")}else if(videoTransceiver.direction==="recvonly"){videoTransceiver.setDirection("inactive")}}else if(offerOptions.offerToReceiveVideo===true&&!videoTransceiver){pc.addTransceiver("video")}}return origCreateOffer.apply(pc,arguments)}}}},{"../utils":13}],13:[function(require,module,exports){"use strict";var logDisabled_=true;var deprecationWarnings_=true;function extractVersion(uastring,expr,pos){var match=uastring.match(expr);return match&&match.length>=pos&&parseInt(match[pos],10)}function wrapPeerConnectionEvent(window,eventNameToWrap,wrapper){if(!window.RTCPeerConnection){return}var proto=window.RTCPeerConnection.prototype;var nativeAddEventListener=proto.addEventListener;proto.addEventListener=function(nativeEventName,cb){if(nativeEventName!==eventNameToWrap){return nativeAddEventListener.apply(this,arguments)}var wrappedCallback=function(e){cb(wrapper(e))};this._eventMap=this._eventMap||{};this._eventMap[cb]=wrappedCallback;return nativeAddEventListener.apply(this,[nativeEventName,wrappedCallback])};var nativeRemoveEventListener=proto.removeEventListener;proto.removeEventListener=function(nativeEventName,cb){if(nativeEventName!==eventNameToWrap||!this._eventMap||!this._eventMap[cb]){return nativeRemoveEventListener.apply(this,arguments)}var unwrappedCb=this._eventMap[cb];delete this._eventMap[cb];return nativeRemoveEventListener.apply(this,[nativeEventName,unwrappedCb])};Object.defineProperty(proto,"on"+eventNameToWrap,{get:function(){return this["_on"+eventNameToWrap]},set:function(cb){if(this["_on"+eventNameToWrap]){this.removeEventListener(eventNameToWrap,this["_on"+eventNameToWrap]);delete this["_on"+eventNameToWrap]}if(cb){this.addEventListener(eventNameToWrap,this["_on"+eventNameToWrap]=cb)}}})}module.exports={extractVersion:extractVersion,wrapPeerConnectionEvent:wrapPeerConnectionEvent,disableLog:function(bool){if(typeof bool!=="boolean"){return new Error("Argument type: "+typeof bool+". Please use a boolean.")}logDisabled_=bool;return bool?"adapter.js logging disabled":"adapter.js logging enabled"},disableWarnings:function(bool){if(typeof bool!=="boolean"){return new Error("Argument type: "+typeof bool+". Please use a boolean.")}deprecationWarnings_=!bool;return"adapter.js deprecation warnings "+(bool?"disabled":"enabled")},log:function(){if(typeof window==="object"){if(logDisabled_){return}if(typeof console!=="undefined"&&typeof console.log==="function"){console.log.apply(console,arguments)}}},deprecated:function(oldMethod,newMethod){if(!deprecationWarnings_){return}console.warn(oldMethod+" is deprecated, please use "+newMethod+" instead.")},detectBrowser:function(window){var navigator=window&&window.navigator;var result={};result.browser=null;result.version=null;if(typeof window==="undefined"||!window.navigator){result.browser="Not a browser.";return result}if(navigator.mozGetUserMedia){result.browser="firefox";result.version=extractVersion(navigator.userAgent,/Firefox\/(\d+)\./,1)}else if(navigator.webkitGetUserMedia){result.browser="chrome";result.version=extractVersion(navigator.userAgent,/Chrom(e|ium)\/(\d+)\./,2)}else if(navigator.mediaDevices&&navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)){result.browser="edge";result.version=extractVersion(navigator.userAgent,/Edge\/(\d+).(\d+)$/,2)}else if(window.RTCPeerConnection&&navigator.userAgent.match(/AppleWebKit\/(\d+)\./)){result.browser="safari";result.version=extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1)}else{result.browser="Not a supported browser.";return result}return result}}},{}]},{},[3])(3)});